mirror of
https://github.com/percona/percona-toolkit.git
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4302 lines
132 KiB
Perl
Executable File
4302 lines
132 KiB
Perl
Executable File
#!/usr/bin/env perl
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# This program is part of Percona Toolkit: http://www.percona.com/software/
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# See "COPYRIGHT, LICENSE, AND WARRANTY" at the end of this file for legal
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# notices and disclaimers.
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use strict;
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use warnings FATAL => 'all';
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use constant MKDEBUG => $ENV{MKDEBUG} || 0;
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# ###########################################################################
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# MasterSlave package
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# This package is a copy without comments from the original. The original
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# with comments and its test file can be found in the Bazaar repository at,
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# lib/MasterSlave.pm
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# t/lib/MasterSlave.t
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# See https://launchpad.net/percona-toolkit for more information.
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# ###########################################################################
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{
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package MasterSlave;
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use strict;
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use warnings FATAL => 'all';
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use English qw(-no_match_vars);
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use constant MKDEBUG => $ENV{MKDEBUG} || 0;
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sub new {
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my ( $class, %args ) = @_;
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my $self = {
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%args,
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replication_thread => {},
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};
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return bless $self, $class;
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}
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sub recurse_to_slaves {
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my ( $self, $args, $level ) = @_;
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$level ||= 0;
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my $dp = $args->{dsn_parser};
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my $dsn = $args->{dsn};
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my $dbh;
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eval {
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$dbh = $args->{dbh} || $dp->get_dbh(
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$dp->get_cxn_params($dsn), { AutoCommit => 1 });
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MKDEBUG && _d('Connected to', $dp->as_string($dsn));
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};
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if ( $EVAL_ERROR ) {
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print STDERR "Cannot connect to ", $dp->as_string($dsn), "\n"
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or die "Cannot print: $OS_ERROR";
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return;
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}
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my $sql = 'SELECT @@SERVER_ID';
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MKDEBUG && _d($sql);
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my ($id) = $dbh->selectrow_array($sql);
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MKDEBUG && _d('Working on server ID', $id);
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my $master_thinks_i_am = $dsn->{server_id};
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if ( !defined $id
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|| ( defined $master_thinks_i_am && $master_thinks_i_am != $id )
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|| $args->{server_ids_seen}->{$id}++
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) {
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MKDEBUG && _d('Server ID seen, or not what master said');
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if ( $args->{skip_callback} ) {
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$args->{skip_callback}->($dsn, $dbh, $level, $args->{parent});
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}
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return;
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}
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$args->{callback}->($dsn, $dbh, $level, $args->{parent});
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if ( !defined $args->{recurse} || $level < $args->{recurse} ) {
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my @slaves =
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grep { !$_->{master_id} || $_->{master_id} == $id } # Only my slaves.
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$self->find_slave_hosts($dp, $dbh, $dsn, $args->{method});
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foreach my $slave ( @slaves ) {
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MKDEBUG && _d('Recursing from',
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$dp->as_string($dsn), 'to', $dp->as_string($slave));
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$self->recurse_to_slaves(
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{ %$args, dsn => $slave, dbh => undef, parent => $dsn }, $level + 1 );
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}
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}
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}
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sub find_slave_hosts {
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my ( $self, $dsn_parser, $dbh, $dsn, $method ) = @_;
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my @methods = qw(processlist hosts);
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if ( $method ) {
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@methods = grep { $_ ne $method } @methods;
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unshift @methods, $method;
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}
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else {
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if ( ($dsn->{P} || 3306) != 3306 ) {
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MKDEBUG && _d('Port number is non-standard; using only hosts method');
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@methods = qw(hosts);
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}
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}
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MKDEBUG && _d('Looking for slaves on', $dsn_parser->as_string($dsn),
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'using methods', @methods);
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my @slaves;
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METHOD:
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foreach my $method ( @methods ) {
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my $find_slaves = "_find_slaves_by_$method";
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MKDEBUG && _d('Finding slaves with', $find_slaves);
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@slaves = $self->$find_slaves($dsn_parser, $dbh, $dsn);
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last METHOD if @slaves;
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}
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MKDEBUG && _d('Found', scalar(@slaves), 'slaves');
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return @slaves;
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}
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sub _find_slaves_by_processlist {
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my ( $self, $dsn_parser, $dbh, $dsn ) = @_;
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my @slaves = map {
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my $slave = $dsn_parser->parse("h=$_", $dsn);
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$slave->{source} = 'processlist';
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$slave;
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}
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grep { $_ }
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map {
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my ( $host ) = $_->{host} =~ m/^([^:]+):/;
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if ( $host eq 'localhost' ) {
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$host = '127.0.0.1'; # Replication never uses sockets.
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}
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$host;
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} $self->get_connected_slaves($dbh);
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return @slaves;
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}
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sub _find_slaves_by_hosts {
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my ( $self, $dsn_parser, $dbh, $dsn ) = @_;
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my @slaves;
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my $sql = 'SHOW SLAVE HOSTS';
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MKDEBUG && _d($dbh, $sql);
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@slaves = @{$dbh->selectall_arrayref($sql, { Slice => {} })};
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if ( @slaves ) {
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MKDEBUG && _d('Found some SHOW SLAVE HOSTS info');
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@slaves = map {
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my %hash;
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@hash{ map { lc $_ } keys %$_ } = values %$_;
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my $spec = "h=$hash{host},P=$hash{port}"
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. ( $hash{user} ? ",u=$hash{user}" : '')
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. ( $hash{password} ? ",p=$hash{password}" : '');
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my $dsn = $dsn_parser->parse($spec, $dsn);
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$dsn->{server_id} = $hash{server_id};
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$dsn->{master_id} = $hash{master_id};
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$dsn->{source} = 'hosts';
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$dsn;
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} @slaves;
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}
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return @slaves;
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}
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sub get_connected_slaves {
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my ( $self, $dbh ) = @_;
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my $show = "SHOW GRANTS FOR ";
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my $user = 'CURRENT_USER()';
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my $vp = $self->{VersionParser};
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if ( $vp && !$vp->version_ge($dbh, '4.1.2') ) {
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$user = $dbh->selectrow_arrayref('SELECT USER()')->[0];
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$user =~ s/([^@]+)@(.+)/'$1'\@'$2'/;
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}
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my $sql = $show . $user;
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MKDEBUG && _d($dbh, $sql);
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my $proc;
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eval {
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$proc = grep {
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m/ALL PRIVILEGES.*?\*\.\*|PROCESS/
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} @{$dbh->selectcol_arrayref($sql)};
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};
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if ( $EVAL_ERROR ) {
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if ( $EVAL_ERROR =~ m/no such grant defined for user/ ) {
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MKDEBUG && _d('Retrying SHOW GRANTS without host; error:',
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$EVAL_ERROR);
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($user) = split('@', $user);
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$sql = $show . $user;
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MKDEBUG && _d($sql);
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eval {
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$proc = grep {
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m/ALL PRIVILEGES.*?\*\.\*|PROCESS/
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} @{$dbh->selectcol_arrayref($sql)};
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};
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}
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die "Failed to $sql: $EVAL_ERROR" if $EVAL_ERROR;
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}
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if ( !$proc ) {
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die "You do not have the PROCESS privilege";
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}
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$sql = 'SHOW PROCESSLIST';
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MKDEBUG && _d($dbh, $sql);
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grep { $_->{command} =~ m/Binlog Dump/i }
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map { # Lowercase the column names
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my %hash;
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@hash{ map { lc $_ } keys %$_ } = values %$_;
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\%hash;
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}
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@{$dbh->selectall_arrayref($sql, { Slice => {} })};
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}
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sub is_master_of {
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my ( $self, $master, $slave ) = @_;
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my $master_status = $self->get_master_status($master)
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or die "The server specified as a master is not a master";
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my $slave_status = $self->get_slave_status($slave)
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or die "The server specified as a slave is not a slave";
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my @connected = $self->get_connected_slaves($master)
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or die "The server specified as a master has no connected slaves";
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my (undef, $port) = $master->selectrow_array('SHOW VARIABLES LIKE "port"');
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if ( $port != $slave_status->{master_port} ) {
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die "The slave is connected to $slave_status->{master_port} "
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. "but the master's port is $port";
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}
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if ( !grep { $slave_status->{master_user} eq $_->{user} } @connected ) {
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die "I don't see any slave I/O thread connected with user "
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. $slave_status->{master_user};
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}
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if ( ($slave_status->{slave_io_state} || '')
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eq 'Waiting for master to send event' )
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{
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my ( $master_log_name, $master_log_num )
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= $master_status->{file} =~ m/^(.*?)\.0*([1-9][0-9]*)$/;
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my ( $slave_log_name, $slave_log_num )
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= $slave_status->{master_log_file} =~ m/^(.*?)\.0*([1-9][0-9]*)$/;
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if ( $master_log_name ne $slave_log_name
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|| abs($master_log_num - $slave_log_num) > 1 )
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{
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die "The slave thinks it is reading from "
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. "$slave_status->{master_log_file}, but the "
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. "master is writing to $master_status->{file}";
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}
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}
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return 1;
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}
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sub get_master_dsn {
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my ( $self, $dbh, $dsn, $dsn_parser ) = @_;
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my $master = $self->get_slave_status($dbh) or return undef;
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my $spec = "h=$master->{master_host},P=$master->{master_port}";
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return $dsn_parser->parse($spec, $dsn);
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}
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sub get_slave_status {
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my ( $self, $dbh ) = @_;
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if ( !$self->{not_a_slave}->{$dbh} ) {
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my $sth = $self->{sths}->{$dbh}->{SLAVE_STATUS}
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||= $dbh->prepare('SHOW SLAVE STATUS');
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MKDEBUG && _d($dbh, 'SHOW SLAVE STATUS');
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$sth->execute();
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my ($ss) = @{$sth->fetchall_arrayref({})};
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if ( $ss && %$ss ) {
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$ss = { map { lc($_) => $ss->{$_} } keys %$ss }; # lowercase the keys
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return $ss;
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}
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MKDEBUG && _d('This server returns nothing for SHOW SLAVE STATUS');
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$self->{not_a_slave}->{$dbh}++;
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}
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}
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sub get_master_status {
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my ( $self, $dbh ) = @_;
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if ( $self->{not_a_master}->{$dbh} ) {
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MKDEBUG && _d('Server on dbh', $dbh, 'is not a master');
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return;
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}
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my $sth = $self->{sths}->{$dbh}->{MASTER_STATUS}
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||= $dbh->prepare('SHOW MASTER STATUS');
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MKDEBUG && _d($dbh, 'SHOW MASTER STATUS');
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$sth->execute();
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my ($ms) = @{$sth->fetchall_arrayref({})};
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MKDEBUG && _d(@$ms);
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if ( !$ms || scalar keys %$ms < 2 ) {
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MKDEBUG && _d('Server on dbh', $dbh, 'does not seem to be a master');
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$self->{not_a_master}->{$dbh}++;
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}
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return { map { lc($_) => $ms->{$_} } keys %$ms }; # lowercase the keys
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}
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sub wait_for_master {
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my ( $self, %args ) = @_;
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my @required_args = qw(master_status slave_dbh);
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foreach my $arg ( @required_args ) {
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die "I need a $arg argument" unless $args{$arg};
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}
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my ($master_status, $slave_dbh) = @args{@required_args};
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my $timeout = $args{timeout} || 60;
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my $result;
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my $waited;
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if ( $master_status ) {
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my $sql = "SELECT MASTER_POS_WAIT('$master_status->{file}', "
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. "$master_status->{position}, $timeout)";
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MKDEBUG && _d($slave_dbh, $sql);
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my $start = time;
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($result) = $slave_dbh->selectrow_array($sql);
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$waited = time - $start;
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MKDEBUG && _d('Result of waiting:', $result);
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MKDEBUG && _d("Waited", $waited, "seconds");
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}
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else {
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MKDEBUG && _d('Not waiting: this server is not a master');
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}
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return {
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result => $result,
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waited => $waited,
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};
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}
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sub stop_slave {
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my ( $self, $dbh ) = @_;
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my $sth = $self->{sths}->{$dbh}->{STOP_SLAVE}
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||= $dbh->prepare('STOP SLAVE');
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MKDEBUG && _d($dbh, $sth->{Statement});
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$sth->execute();
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}
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sub start_slave {
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my ( $self, $dbh, $pos ) = @_;
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if ( $pos ) {
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my $sql = "START SLAVE UNTIL MASTER_LOG_FILE='$pos->{file}', "
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. "MASTER_LOG_POS=$pos->{position}";
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MKDEBUG && _d($dbh, $sql);
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$dbh->do($sql);
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}
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else {
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my $sth = $self->{sths}->{$dbh}->{START_SLAVE}
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||= $dbh->prepare('START SLAVE');
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MKDEBUG && _d($dbh, $sth->{Statement});
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$sth->execute();
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}
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}
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sub catchup_to_master {
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my ( $self, $slave, $master, $timeout ) = @_;
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$self->stop_slave($master);
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$self->stop_slave($slave);
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my $slave_status = $self->get_slave_status($slave);
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my $slave_pos = $self->repl_posn($slave_status);
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my $master_status = $self->get_master_status($master);
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my $master_pos = $self->repl_posn($master_status);
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MKDEBUG && _d('Master position:', $self->pos_to_string($master_pos),
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'Slave position:', $self->pos_to_string($slave_pos));
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my $result;
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if ( $self->pos_cmp($slave_pos, $master_pos) < 0 ) {
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MKDEBUG && _d('Waiting for slave to catch up to master');
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$self->start_slave($slave, $master_pos);
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$result = $self->wait_for_master(
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master_status => $master_status,
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slave_dbh => $slave,
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timeout => $timeout,
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master_status => $master_status
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);
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if ( !defined $result->{result} ) {
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$slave_status = $self->get_slave_status($slave);
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if ( !$self->slave_is_running($slave_status) ) {
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MKDEBUG && _d('Master position:',
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$self->pos_to_string($master_pos),
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'Slave position:', $self->pos_to_string($slave_pos));
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$slave_pos = $self->repl_posn($slave_status);
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if ( $self->pos_cmp($slave_pos, $master_pos) != 0 ) {
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die "MASTER_POS_WAIT() returned NULL but slave has not "
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. "caught up to master";
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}
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MKDEBUG && _d('Slave is caught up to master and stopped');
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}
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else {
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die "Slave has not caught up to master and it is still running";
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}
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}
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}
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else {
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MKDEBUG && _d("Slave is already caught up to master");
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}
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return $result;
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}
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sub catchup_to_same_pos {
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my ( $self, $s1_dbh, $s2_dbh ) = @_;
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$self->stop_slave($s1_dbh);
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$self->stop_slave($s2_dbh);
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my $s1_status = $self->get_slave_status($s1_dbh);
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my $s2_status = $self->get_slave_status($s2_dbh);
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my $s1_pos = $self->repl_posn($s1_status);
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my $s2_pos = $self->repl_posn($s2_status);
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if ( $self->pos_cmp($s1_pos, $s2_pos) < 0 ) {
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$self->start_slave($s1_dbh, $s2_pos);
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}
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elsif ( $self->pos_cmp($s2_pos, $s1_pos) < 0 ) {
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$self->start_slave($s2_dbh, $s1_pos);
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}
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$s1_status = $self->get_slave_status($s1_dbh);
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$s2_status = $self->get_slave_status($s2_dbh);
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$s1_pos = $self->repl_posn($s1_status);
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$s2_pos = $self->repl_posn($s2_status);
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if ( $self->slave_is_running($s1_status)
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|| $self->slave_is_running($s2_status)
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|| $self->pos_cmp($s1_pos, $s2_pos) != 0)
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{
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die "The servers aren't both stopped at the same position";
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}
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}
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sub slave_is_running {
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my ( $self, $slave_status ) = @_;
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return ($slave_status->{slave_sql_running} || 'No') eq 'Yes';
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}
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sub has_slave_updates {
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my ( $self, $dbh ) = @_;
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my $sql = q{SHOW VARIABLES LIKE 'log_slave_updates'};
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MKDEBUG && _d($dbh, $sql);
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my ($name, $value) = $dbh->selectrow_array($sql);
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return $value && $value =~ m/^(1|ON)$/;
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}
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sub repl_posn {
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my ( $self, $status ) = @_;
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if ( exists $status->{file} && exists $status->{position} ) {
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return {
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file => $status->{file},
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position => $status->{position},
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};
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}
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else {
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return {
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file => $status->{relay_master_log_file},
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position => $status->{exec_master_log_pos},
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};
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}
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}
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sub get_slave_lag {
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my ( $self, $dbh ) = @_;
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my $stat = $self->get_slave_status($dbh);
|
|
return unless $stat; # server is not a slave
|
|
return $stat->{seconds_behind_master};
|
|
}
|
|
|
|
sub pos_cmp {
|
|
my ( $self, $a, $b ) = @_;
|
|
return $self->pos_to_string($a) cmp $self->pos_to_string($b);
|
|
}
|
|
|
|
sub short_host {
|
|
my ( $self, $dsn ) = @_;
|
|
my ($host, $port);
|
|
if ( $dsn->{master_host} ) {
|
|
$host = $dsn->{master_host};
|
|
$port = $dsn->{master_port};
|
|
}
|
|
else {
|
|
$host = $dsn->{h};
|
|
$port = $dsn->{P};
|
|
}
|
|
return ($host || '[default]') . ( ($port || 3306) == 3306 ? '' : ":$port" );
|
|
}
|
|
|
|
sub is_replication_thread {
|
|
my ( $self, $query, %args ) = @_;
|
|
return unless $query;
|
|
|
|
my $type = lc $args{type} || 'all';
|
|
die "Invalid type: $type"
|
|
unless $type =~ m/^binlog_dump|slave_io|slave_sql|all$/i;
|
|
|
|
my $match = 0;
|
|
if ( $type =~ m/binlog_dump|all/i ) {
|
|
$match = 1
|
|
if ($query->{Command} || $query->{command} || '') eq "Binlog Dump";
|
|
}
|
|
if ( !$match ) {
|
|
if ( ($query->{User} || $query->{user} || '') eq "system user" ) {
|
|
MKDEBUG && _d("Slave replication thread");
|
|
if ( $type ne 'all' ) {
|
|
my $state = $query->{State} || $query->{state} || '';
|
|
|
|
if ( $state =~ m/^init|end$/ ) {
|
|
MKDEBUG && _d("Special state:", $state);
|
|
$match = 1;
|
|
}
|
|
else {
|
|
my ($slave_sql) = $state =~ m/
|
|
^(Waiting\sfor\sthe\snext\sevent
|
|
|Reading\sevent\sfrom\sthe\srelay\slog
|
|
|Has\sread\sall\srelay\slog;\swaiting
|
|
|Making\stemp\sfile
|
|
|Waiting\sfor\sslave\smutex\son\sexit)/xi;
|
|
|
|
$match = $type eq 'slave_sql' && $slave_sql ? 1
|
|
: $type eq 'slave_io' && !$slave_sql ? 1
|
|
: 0;
|
|
}
|
|
}
|
|
else {
|
|
$match = 1;
|
|
}
|
|
}
|
|
else {
|
|
MKDEBUG && _d('Not system user');
|
|
}
|
|
|
|
if ( !defined $args{check_known_ids} || $args{check_known_ids} ) {
|
|
my $id = $query->{Id} || $query->{id};
|
|
if ( $match ) {
|
|
$self->{replication_thread}->{$id} = 1;
|
|
}
|
|
else {
|
|
if ( $self->{replication_thread}->{$id} ) {
|
|
MKDEBUG && _d("Thread ID is a known replication thread ID");
|
|
$match = 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
MKDEBUG && _d('Matches', $type, 'replication thread:',
|
|
($match ? 'yes' : 'no'), '; match:', $match);
|
|
|
|
return $match;
|
|
}
|
|
|
|
|
|
sub get_replication_filters {
|
|
my ( $self, %args ) = @_;
|
|
my @required_args = qw(dbh);
|
|
foreach my $arg ( @required_args ) {
|
|
die "I need a $arg argument" unless $args{$arg};
|
|
}
|
|
my ($dbh) = @args{@required_args};
|
|
|
|
my %filters = ();
|
|
|
|
my $status = $self->get_master_status($dbh);
|
|
if ( $status ) {
|
|
map { $filters{$_} = $status->{$_} }
|
|
grep { defined $status->{$_} && $status->{$_} ne '' }
|
|
qw(
|
|
binlog_do_db
|
|
binlog_ignore_db
|
|
);
|
|
}
|
|
|
|
$status = $self->get_slave_status($dbh);
|
|
if ( $status ) {
|
|
map { $filters{$_} = $status->{$_} }
|
|
grep { defined $status->{$_} && $status->{$_} ne '' }
|
|
qw(
|
|
replicate_do_db
|
|
replicate_ignore_db
|
|
replicate_do_table
|
|
replicate_ignore_table
|
|
replicate_wild_do_table
|
|
replicate_wild_ignore_table
|
|
);
|
|
|
|
my $sql = "SHOW VARIABLES LIKE 'slave_skip_errors'";
|
|
MKDEBUG && _d($dbh, $sql);
|
|
my $row = $dbh->selectrow_arrayref($sql);
|
|
$filters{slave_skip_errors} = $row->[1] if $row->[1] && $row->[1] ne 'OFF';
|
|
}
|
|
|
|
return \%filters;
|
|
}
|
|
|
|
|
|
sub pos_to_string {
|
|
my ( $self, $pos ) = @_;
|
|
my $fmt = '%s/%020d';
|
|
return sprintf($fmt, @{$pos}{qw(file position)});
|
|
}
|
|
|
|
sub reset_known_replication_threads {
|
|
my ( $self ) = @_;
|
|
$self->{replication_thread} = {};
|
|
return;
|
|
}
|
|
|
|
sub _d {
|
|
my ($package, undef, $line) = caller 0;
|
|
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
|
|
map { defined $_ ? $_ : 'undef' }
|
|
@_;
|
|
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
|
|
}
|
|
|
|
1;
|
|
}
|
|
# ###########################################################################
|
|
# End MasterSlave package
|
|
# ###########################################################################
|
|
|
|
# ###########################################################################
|
|
# OptionParser package
|
|
# This package is a copy without comments from the original. The original
|
|
# with comments and its test file can be found in the Bazaar repository at,
|
|
# lib/OptionParser.pm
|
|
# t/lib/OptionParser.t
|
|
# See https://launchpad.net/percona-toolkit for more information.
|
|
# ###########################################################################
|
|
{
|
|
package OptionParser;
|
|
|
|
use strict;
|
|
use warnings FATAL => 'all';
|
|
use English qw(-no_match_vars);
|
|
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
|
|
|
|
use List::Util qw(max);
|
|
use Getopt::Long;
|
|
|
|
my $POD_link_re = '[LC]<"?([^">]+)"?>';
|
|
|
|
sub new {
|
|
my ( $class, %args ) = @_;
|
|
my @required_args = qw();
|
|
foreach my $arg ( @required_args ) {
|
|
die "I need a $arg argument" unless $args{$arg};
|
|
}
|
|
|
|
my ($program_name) = $PROGRAM_NAME =~ m/([.A-Za-z-]+)$/;
|
|
$program_name ||= $PROGRAM_NAME;
|
|
my $home = $ENV{HOME} || $ENV{HOMEPATH} || $ENV{USERPROFILE} || '.';
|
|
|
|
my %attributes = (
|
|
'type' => 1,
|
|
'short form' => 1,
|
|
'group' => 1,
|
|
'default' => 1,
|
|
'cumulative' => 1,
|
|
'negatable' => 1,
|
|
);
|
|
|
|
my $self = {
|
|
head1 => 'OPTIONS', # These args are used internally
|
|
skip_rules => 0, # to instantiate another Option-
|
|
item => '--(.*)', # Parser obj that parses the
|
|
attributes => \%attributes, # DSN OPTIONS section. Tools
|
|
parse_attributes => \&_parse_attribs, # don't tinker with these args.
|
|
|
|
%args,
|
|
|
|
strict => 1, # disabled by a special rule
|
|
program_name => $program_name,
|
|
opts => {},
|
|
got_opts => 0,
|
|
short_opts => {},
|
|
defaults => {},
|
|
groups => {},
|
|
allowed_groups => {},
|
|
errors => [],
|
|
rules => [], # desc of rules for --help
|
|
mutex => [], # rule: opts are mutually exclusive
|
|
atleast1 => [], # rule: at least one opt is required
|
|
disables => {}, # rule: opt disables other opts
|
|
defaults_to => {}, # rule: opt defaults to value of other opt
|
|
DSNParser => undef,
|
|
default_files => [
|
|
"/etc/percona-toolkit/percona-toolkit.conf",
|
|
"/etc/percona-toolkit/$program_name.conf",
|
|
"$home/.percona-toolkit.conf",
|
|
"$home/.$program_name.conf",
|
|
],
|
|
types => {
|
|
string => 's', # standard Getopt type
|
|
int => 'i', # standard Getopt type
|
|
float => 'f', # standard Getopt type
|
|
Hash => 'H', # hash, formed from a comma-separated list
|
|
hash => 'h', # hash as above, but only if a value is given
|
|
Array => 'A', # array, similar to Hash
|
|
array => 'a', # array, similar to hash
|
|
DSN => 'd', # DSN
|
|
size => 'z', # size with kMG suffix (powers of 2^10)
|
|
time => 'm', # time, with an optional suffix of s/h/m/d
|
|
},
|
|
};
|
|
|
|
return bless $self, $class;
|
|
}
|
|
|
|
sub get_specs {
|
|
my ( $self, $file ) = @_;
|
|
$file ||= $self->{file} || __FILE__;
|
|
my @specs = $self->_pod_to_specs($file);
|
|
$self->_parse_specs(@specs);
|
|
|
|
open my $fh, "<", $file or die "Cannot open $file: $OS_ERROR";
|
|
my $contents = do { local $/ = undef; <$fh> };
|
|
close $fh;
|
|
if ( $contents =~ m/^=head1 DSN OPTIONS/m ) {
|
|
MKDEBUG && _d('Parsing DSN OPTIONS');
|
|
my $dsn_attribs = {
|
|
dsn => 1,
|
|
copy => 1,
|
|
};
|
|
my $parse_dsn_attribs = sub {
|
|
my ( $self, $option, $attribs ) = @_;
|
|
map {
|
|
my $val = $attribs->{$_};
|
|
if ( $val ) {
|
|
$val = $val eq 'yes' ? 1
|
|
: $val eq 'no' ? 0
|
|
: $val;
|
|
$attribs->{$_} = $val;
|
|
}
|
|
} keys %$attribs;
|
|
return {
|
|
key => $option,
|
|
%$attribs,
|
|
};
|
|
};
|
|
my $dsn_o = new OptionParser(
|
|
description => 'DSN OPTIONS',
|
|
head1 => 'DSN OPTIONS',
|
|
dsn => 0, # XXX don't infinitely recurse!
|
|
item => '\* (.)', # key opts are a single character
|
|
skip_rules => 1, # no rules before opts
|
|
attributes => $dsn_attribs,
|
|
parse_attributes => $parse_dsn_attribs,
|
|
);
|
|
my @dsn_opts = map {
|
|
my $opts = {
|
|
key => $_->{spec}->{key},
|
|
dsn => $_->{spec}->{dsn},
|
|
copy => $_->{spec}->{copy},
|
|
desc => $_->{desc},
|
|
};
|
|
$opts;
|
|
} $dsn_o->_pod_to_specs($file);
|
|
$self->{DSNParser} = DSNParser->new(opts => \@dsn_opts);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
sub DSNParser {
|
|
my ( $self ) = @_;
|
|
return $self->{DSNParser};
|
|
};
|
|
|
|
sub get_defaults_files {
|
|
my ( $self ) = @_;
|
|
return @{$self->{default_files}};
|
|
}
|
|
|
|
sub _pod_to_specs {
|
|
my ( $self, $file ) = @_;
|
|
$file ||= $self->{file} || __FILE__;
|
|
open my $fh, '<', $file or die "Cannot open $file: $OS_ERROR";
|
|
|
|
my @specs = ();
|
|
my @rules = ();
|
|
my $para;
|
|
|
|
local $INPUT_RECORD_SEPARATOR = '';
|
|
while ( $para = <$fh> ) {
|
|
next unless $para =~ m/^=head1 $self->{head1}/;
|
|
last;
|
|
}
|
|
|
|
while ( $para = <$fh> ) {
|
|
last if $para =~ m/^=over/;
|
|
next if $self->{skip_rules};
|
|
chomp $para;
|
|
$para =~ s/\s+/ /g;
|
|
$para =~ s/$POD_link_re/$1/go;
|
|
MKDEBUG && _d('Option rule:', $para);
|
|
push @rules, $para;
|
|
}
|
|
|
|
die "POD has no $self->{head1} section" unless $para;
|
|
|
|
do {
|
|
if ( my ($option) = $para =~ m/^=item $self->{item}/ ) {
|
|
chomp $para;
|
|
MKDEBUG && _d($para);
|
|
my %attribs;
|
|
|
|
$para = <$fh>; # read next paragraph, possibly attributes
|
|
|
|
if ( $para =~ m/: / ) { # attributes
|
|
$para =~ s/\s+\Z//g;
|
|
%attribs = map {
|
|
my ( $attrib, $val) = split(/: /, $_);
|
|
die "Unrecognized attribute for --$option: $attrib"
|
|
unless $self->{attributes}->{$attrib};
|
|
($attrib, $val);
|
|
} split(/; /, $para);
|
|
if ( $attribs{'short form'} ) {
|
|
$attribs{'short form'} =~ s/-//;
|
|
}
|
|
$para = <$fh>; # read next paragraph, probably short help desc
|
|
}
|
|
else {
|
|
MKDEBUG && _d('Option has no attributes');
|
|
}
|
|
|
|
$para =~ s/\s+\Z//g;
|
|
$para =~ s/\s+/ /g;
|
|
$para =~ s/$POD_link_re/$1/go;
|
|
|
|
$para =~ s/\.(?:\n.*| [A-Z].*|\Z)//s;
|
|
MKDEBUG && _d('Short help:', $para);
|
|
|
|
die "No description after option spec $option" if $para =~ m/^=item/;
|
|
|
|
if ( my ($base_option) = $option =~ m/^\[no\](.*)/ ) {
|
|
$option = $base_option;
|
|
$attribs{'negatable'} = 1;
|
|
}
|
|
|
|
push @specs, {
|
|
spec => $self->{parse_attributes}->($self, $option, \%attribs),
|
|
desc => $para
|
|
. (defined $attribs{default} ? " (default $attribs{default})" : ''),
|
|
group => ($attribs{'group'} ? $attribs{'group'} : 'default'),
|
|
};
|
|
}
|
|
while ( $para = <$fh> ) {
|
|
last unless $para;
|
|
if ( $para =~ m/^=head1/ ) {
|
|
$para = undef; # Can't 'last' out of a do {} block.
|
|
last;
|
|
}
|
|
last if $para =~ m/^=item /;
|
|
}
|
|
} while ( $para );
|
|
|
|
die "No valid specs in $self->{head1}" unless @specs;
|
|
|
|
close $fh;
|
|
return @specs, @rules;
|
|
}
|
|
|
|
sub _parse_specs {
|
|
my ( $self, @specs ) = @_;
|
|
my %disables; # special rule that requires deferred checking
|
|
|
|
foreach my $opt ( @specs ) {
|
|
if ( ref $opt ) { # It's an option spec, not a rule.
|
|
MKDEBUG && _d('Parsing opt spec:',
|
|
map { ($_, '=>', $opt->{$_}) } keys %$opt);
|
|
|
|
my ( $long, $short ) = $opt->{spec} =~ m/^([\w-]+)(?:\|([^!+=]*))?/;
|
|
if ( !$long ) {
|
|
die "Cannot parse long option from spec $opt->{spec}";
|
|
}
|
|
$opt->{long} = $long;
|
|
|
|
die "Duplicate long option --$long" if exists $self->{opts}->{$long};
|
|
$self->{opts}->{$long} = $opt;
|
|
|
|
if ( length $long == 1 ) {
|
|
MKDEBUG && _d('Long opt', $long, 'looks like short opt');
|
|
$self->{short_opts}->{$long} = $long;
|
|
}
|
|
|
|
if ( $short ) {
|
|
die "Duplicate short option -$short"
|
|
if exists $self->{short_opts}->{$short};
|
|
$self->{short_opts}->{$short} = $long;
|
|
$opt->{short} = $short;
|
|
}
|
|
else {
|
|
$opt->{short} = undef;
|
|
}
|
|
|
|
$opt->{is_negatable} = $opt->{spec} =~ m/!/ ? 1 : 0;
|
|
$opt->{is_cumulative} = $opt->{spec} =~ m/\+/ ? 1 : 0;
|
|
$opt->{is_required} = $opt->{desc} =~ m/required/ ? 1 : 0;
|
|
|
|
$opt->{group} ||= 'default';
|
|
$self->{groups}->{ $opt->{group} }->{$long} = 1;
|
|
|
|
$opt->{value} = undef;
|
|
$opt->{got} = 0;
|
|
|
|
my ( $type ) = $opt->{spec} =~ m/=(.)/;
|
|
$opt->{type} = $type;
|
|
MKDEBUG && _d($long, 'type:', $type);
|
|
|
|
|
|
$opt->{spec} =~ s/=./=s/ if ( $type && $type =~ m/[HhAadzm]/ );
|
|
|
|
if ( (my ($def) = $opt->{desc} =~ m/default\b(?: ([^)]+))?/) ) {
|
|
$self->{defaults}->{$long} = defined $def ? $def : 1;
|
|
MKDEBUG && _d($long, 'default:', $def);
|
|
}
|
|
|
|
if ( $long eq 'config' ) {
|
|
$self->{defaults}->{$long} = join(',', $self->get_defaults_files());
|
|
}
|
|
|
|
if ( (my ($dis) = $opt->{desc} =~ m/(disables .*)/) ) {
|
|
$disables{$long} = $dis;
|
|
MKDEBUG && _d('Deferring check of disables rule for', $opt, $dis);
|
|
}
|
|
|
|
$self->{opts}->{$long} = $opt;
|
|
}
|
|
else { # It's an option rule, not a spec.
|
|
MKDEBUG && _d('Parsing rule:', $opt);
|
|
push @{$self->{rules}}, $opt;
|
|
my @participants = $self->_get_participants($opt);
|
|
my $rule_ok = 0;
|
|
|
|
if ( $opt =~ m/mutually exclusive|one and only one/ ) {
|
|
$rule_ok = 1;
|
|
push @{$self->{mutex}}, \@participants;
|
|
MKDEBUG && _d(@participants, 'are mutually exclusive');
|
|
}
|
|
if ( $opt =~ m/at least one|one and only one/ ) {
|
|
$rule_ok = 1;
|
|
push @{$self->{atleast1}}, \@participants;
|
|
MKDEBUG && _d(@participants, 'require at least one');
|
|
}
|
|
if ( $opt =~ m/default to/ ) {
|
|
$rule_ok = 1;
|
|
$self->{defaults_to}->{$participants[0]} = $participants[1];
|
|
MKDEBUG && _d($participants[0], 'defaults to', $participants[1]);
|
|
}
|
|
if ( $opt =~ m/restricted to option groups/ ) {
|
|
$rule_ok = 1;
|
|
my ($groups) = $opt =~ m/groups ([\w\s\,]+)/;
|
|
my @groups = split(',', $groups);
|
|
%{$self->{allowed_groups}->{$participants[0]}} = map {
|
|
s/\s+//;
|
|
$_ => 1;
|
|
} @groups;
|
|
}
|
|
if( $opt =~ m/accepts additional command-line arguments/ ) {
|
|
$rule_ok = 1;
|
|
$self->{strict} = 0;
|
|
MKDEBUG && _d("Strict mode disabled by rule");
|
|
}
|
|
|
|
die "Unrecognized option rule: $opt" unless $rule_ok;
|
|
}
|
|
}
|
|
|
|
foreach my $long ( keys %disables ) {
|
|
my @participants = $self->_get_participants($disables{$long});
|
|
$self->{disables}->{$long} = \@participants;
|
|
MKDEBUG && _d('Option', $long, 'disables', @participants);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
sub _get_participants {
|
|
my ( $self, $str ) = @_;
|
|
my @participants;
|
|
foreach my $long ( $str =~ m/--(?:\[no\])?([\w-]+)/g ) {
|
|
die "Option --$long does not exist while processing rule $str"
|
|
unless exists $self->{opts}->{$long};
|
|
push @participants, $long;
|
|
}
|
|
MKDEBUG && _d('Participants for', $str, ':', @participants);
|
|
return @participants;
|
|
}
|
|
|
|
sub opts {
|
|
my ( $self ) = @_;
|
|
my %opts = %{$self->{opts}};
|
|
return %opts;
|
|
}
|
|
|
|
sub short_opts {
|
|
my ( $self ) = @_;
|
|
my %short_opts = %{$self->{short_opts}};
|
|
return %short_opts;
|
|
}
|
|
|
|
sub set_defaults {
|
|
my ( $self, %defaults ) = @_;
|
|
$self->{defaults} = {};
|
|
foreach my $long ( keys %defaults ) {
|
|
die "Cannot set default for nonexistent option $long"
|
|
unless exists $self->{opts}->{$long};
|
|
$self->{defaults}->{$long} = $defaults{$long};
|
|
MKDEBUG && _d('Default val for', $long, ':', $defaults{$long});
|
|
}
|
|
return;
|
|
}
|
|
|
|
sub get_defaults {
|
|
my ( $self ) = @_;
|
|
return $self->{defaults};
|
|
}
|
|
|
|
sub get_groups {
|
|
my ( $self ) = @_;
|
|
return $self->{groups};
|
|
}
|
|
|
|
sub _set_option {
|
|
my ( $self, $opt, $val ) = @_;
|
|
my $long = exists $self->{opts}->{$opt} ? $opt
|
|
: exists $self->{short_opts}->{$opt} ? $self->{short_opts}->{$opt}
|
|
: die "Getopt::Long gave a nonexistent option: $opt";
|
|
|
|
$opt = $self->{opts}->{$long};
|
|
if ( $opt->{is_cumulative} ) {
|
|
$opt->{value}++;
|
|
}
|
|
else {
|
|
$opt->{value} = $val;
|
|
}
|
|
$opt->{got} = 1;
|
|
MKDEBUG && _d('Got option', $long, '=', $val);
|
|
}
|
|
|
|
sub get_opts {
|
|
my ( $self ) = @_;
|
|
|
|
foreach my $long ( keys %{$self->{opts}} ) {
|
|
$self->{opts}->{$long}->{got} = 0;
|
|
$self->{opts}->{$long}->{value}
|
|
= exists $self->{defaults}->{$long} ? $self->{defaults}->{$long}
|
|
: $self->{opts}->{$long}->{is_cumulative} ? 0
|
|
: undef;
|
|
}
|
|
$self->{got_opts} = 0;
|
|
|
|
$self->{errors} = [];
|
|
|
|
if ( @ARGV && $ARGV[0] eq "--config" ) {
|
|
shift @ARGV;
|
|
$self->_set_option('config', shift @ARGV);
|
|
}
|
|
if ( $self->has('config') ) {
|
|
my @extra_args;
|
|
foreach my $filename ( split(',', $self->get('config')) ) {
|
|
eval {
|
|
push @extra_args, $self->_read_config_file($filename);
|
|
};
|
|
if ( $EVAL_ERROR ) {
|
|
if ( $self->got('config') ) {
|
|
die $EVAL_ERROR;
|
|
}
|
|
elsif ( MKDEBUG ) {
|
|
_d($EVAL_ERROR);
|
|
}
|
|
}
|
|
}
|
|
unshift @ARGV, @extra_args;
|
|
}
|
|
|
|
Getopt::Long::Configure('no_ignore_case', 'bundling');
|
|
GetOptions(
|
|
map { $_->{spec} => sub { $self->_set_option(@_); } }
|
|
grep { $_->{long} ne 'config' } # --config is handled specially above.
|
|
values %{$self->{opts}}
|
|
) or $self->save_error('Error parsing options');
|
|
|
|
if ( exists $self->{opts}->{version} && $self->{opts}->{version}->{got} ) {
|
|
printf("%s Ver %s Distrib %s Changeset %s\n",
|
|
$self->{program_name}, $main::VERSION, $main::DISTRIB, $main::SVN_REV)
|
|
or die "Cannot print: $OS_ERROR";
|
|
exit 0;
|
|
}
|
|
|
|
if ( @ARGV && $self->{strict} ) {
|
|
$self->save_error("Unrecognized command-line options @ARGV");
|
|
}
|
|
|
|
foreach my $mutex ( @{$self->{mutex}} ) {
|
|
my @set = grep { $self->{opts}->{$_}->{got} } @$mutex;
|
|
if ( @set > 1 ) {
|
|
my $err = join(', ', map { "--$self->{opts}->{$_}->{long}" }
|
|
@{$mutex}[ 0 .. scalar(@$mutex) - 2] )
|
|
. ' and --'.$self->{opts}->{$mutex->[-1]}->{long}
|
|
. ' are mutually exclusive.';
|
|
$self->save_error($err);
|
|
}
|
|
}
|
|
|
|
foreach my $required ( @{$self->{atleast1}} ) {
|
|
my @set = grep { $self->{opts}->{$_}->{got} } @$required;
|
|
if ( @set == 0 ) {
|
|
my $err = join(', ', map { "--$self->{opts}->{$_}->{long}" }
|
|
@{$required}[ 0 .. scalar(@$required) - 2] )
|
|
.' or --'.$self->{opts}->{$required->[-1]}->{long};
|
|
$self->save_error("Specify at least one of $err");
|
|
}
|
|
}
|
|
|
|
$self->_check_opts( keys %{$self->{opts}} );
|
|
$self->{got_opts} = 1;
|
|
return;
|
|
}
|
|
|
|
sub _check_opts {
|
|
my ( $self, @long ) = @_;
|
|
my $long_last = scalar @long;
|
|
while ( @long ) {
|
|
foreach my $i ( 0..$#long ) {
|
|
my $long = $long[$i];
|
|
next unless $long;
|
|
my $opt = $self->{opts}->{$long};
|
|
if ( $opt->{got} ) {
|
|
if ( exists $self->{disables}->{$long} ) {
|
|
my @disable_opts = @{$self->{disables}->{$long}};
|
|
map { $self->{opts}->{$_}->{value} = undef; } @disable_opts;
|
|
MKDEBUG && _d('Unset options', @disable_opts,
|
|
'because', $long,'disables them');
|
|
}
|
|
|
|
if ( exists $self->{allowed_groups}->{$long} ) {
|
|
|
|
my @restricted_groups = grep {
|
|
!exists $self->{allowed_groups}->{$long}->{$_}
|
|
} keys %{$self->{groups}};
|
|
|
|
my @restricted_opts;
|
|
foreach my $restricted_group ( @restricted_groups ) {
|
|
RESTRICTED_OPT:
|
|
foreach my $restricted_opt (
|
|
keys %{$self->{groups}->{$restricted_group}} )
|
|
{
|
|
next RESTRICTED_OPT if $restricted_opt eq $long;
|
|
push @restricted_opts, $restricted_opt
|
|
if $self->{opts}->{$restricted_opt}->{got};
|
|
}
|
|
}
|
|
|
|
if ( @restricted_opts ) {
|
|
my $err;
|
|
if ( @restricted_opts == 1 ) {
|
|
$err = "--$restricted_opts[0]";
|
|
}
|
|
else {
|
|
$err = join(', ',
|
|
map { "--$self->{opts}->{$_}->{long}" }
|
|
grep { $_ }
|
|
@restricted_opts[0..scalar(@restricted_opts) - 2]
|
|
)
|
|
. ' or --'.$self->{opts}->{$restricted_opts[-1]}->{long};
|
|
}
|
|
$self->save_error("--$long is not allowed with $err");
|
|
}
|
|
}
|
|
|
|
}
|
|
elsif ( $opt->{is_required} ) {
|
|
$self->save_error("Required option --$long must be specified");
|
|
}
|
|
|
|
$self->_validate_type($opt);
|
|
if ( $opt->{parsed} ) {
|
|
delete $long[$i];
|
|
}
|
|
else {
|
|
MKDEBUG && _d('Temporarily failed to parse', $long);
|
|
}
|
|
}
|
|
|
|
die "Failed to parse options, possibly due to circular dependencies"
|
|
if @long == $long_last;
|
|
$long_last = @long;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
sub _validate_type {
|
|
my ( $self, $opt ) = @_;
|
|
return unless $opt;
|
|
|
|
if ( !$opt->{type} ) {
|
|
$opt->{parsed} = 1;
|
|
return;
|
|
}
|
|
|
|
my $val = $opt->{value};
|
|
|
|
if ( $val && $opt->{type} eq 'm' ) { # type time
|
|
MKDEBUG && _d('Parsing option', $opt->{long}, 'as a time value');
|
|
my ( $prefix, $num, $suffix ) = $val =~ m/([+-]?)(\d+)([a-z])?$/;
|
|
if ( !$suffix ) {
|
|
my ( $s ) = $opt->{desc} =~ m/\(suffix (.)\)/;
|
|
$suffix = $s || 's';
|
|
MKDEBUG && _d('No suffix given; using', $suffix, 'for',
|
|
$opt->{long}, '(value:', $val, ')');
|
|
}
|
|
if ( $suffix =~ m/[smhd]/ ) {
|
|
$val = $suffix eq 's' ? $num # Seconds
|
|
: $suffix eq 'm' ? $num * 60 # Minutes
|
|
: $suffix eq 'h' ? $num * 3600 # Hours
|
|
: $num * 86400; # Days
|
|
$opt->{value} = ($prefix || '') . $val;
|
|
MKDEBUG && _d('Setting option', $opt->{long}, 'to', $val);
|
|
}
|
|
else {
|
|
$self->save_error("Invalid time suffix for --$opt->{long}");
|
|
}
|
|
}
|
|
elsif ( $val && $opt->{type} eq 'd' ) { # type DSN
|
|
MKDEBUG && _d('Parsing option', $opt->{long}, 'as a DSN');
|
|
my $prev = {};
|
|
my $from_key = $self->{defaults_to}->{ $opt->{long} };
|
|
if ( $from_key ) {
|
|
MKDEBUG && _d($opt->{long}, 'DSN copies from', $from_key, 'DSN');
|
|
if ( $self->{opts}->{$from_key}->{parsed} ) {
|
|
$prev = $self->{opts}->{$from_key}->{value};
|
|
}
|
|
else {
|
|
MKDEBUG && _d('Cannot parse', $opt->{long}, 'until',
|
|
$from_key, 'parsed');
|
|
return;
|
|
}
|
|
}
|
|
my $defaults = $self->{DSNParser}->parse_options($self);
|
|
$opt->{value} = $self->{DSNParser}->parse($val, $prev, $defaults);
|
|
}
|
|
elsif ( $val && $opt->{type} eq 'z' ) { # type size
|
|
MKDEBUG && _d('Parsing option', $opt->{long}, 'as a size value');
|
|
$self->_parse_size($opt, $val);
|
|
}
|
|
elsif ( $opt->{type} eq 'H' || (defined $val && $opt->{type} eq 'h') ) {
|
|
$opt->{value} = { map { $_ => 1 } split(/(?<!\\),\s*/, ($val || '')) };
|
|
}
|
|
elsif ( $opt->{type} eq 'A' || (defined $val && $opt->{type} eq 'a') ) {
|
|
$opt->{value} = [ split(/(?<!\\),\s*/, ($val || '')) ];
|
|
}
|
|
else {
|
|
MKDEBUG && _d('Nothing to validate for option',
|
|
$opt->{long}, 'type', $opt->{type}, 'value', $val);
|
|
}
|
|
|
|
$opt->{parsed} = 1;
|
|
return;
|
|
}
|
|
|
|
sub get {
|
|
my ( $self, $opt ) = @_;
|
|
my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
|
|
die "Option $opt does not exist"
|
|
unless $long && exists $self->{opts}->{$long};
|
|
return $self->{opts}->{$long}->{value};
|
|
}
|
|
|
|
sub got {
|
|
my ( $self, $opt ) = @_;
|
|
my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
|
|
die "Option $opt does not exist"
|
|
unless $long && exists $self->{opts}->{$long};
|
|
return $self->{opts}->{$long}->{got};
|
|
}
|
|
|
|
sub has {
|
|
my ( $self, $opt ) = @_;
|
|
my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
|
|
return defined $long ? exists $self->{opts}->{$long} : 0;
|
|
}
|
|
|
|
sub set {
|
|
my ( $self, $opt, $val ) = @_;
|
|
my $long = (length $opt == 1 ? $self->{short_opts}->{$opt} : $opt);
|
|
die "Option $opt does not exist"
|
|
unless $long && exists $self->{opts}->{$long};
|
|
$self->{opts}->{$long}->{value} = $val;
|
|
return;
|
|
}
|
|
|
|
sub save_error {
|
|
my ( $self, $error ) = @_;
|
|
push @{$self->{errors}}, $error;
|
|
return;
|
|
}
|
|
|
|
sub errors {
|
|
my ( $self ) = @_;
|
|
return $self->{errors};
|
|
}
|
|
|
|
sub usage {
|
|
my ( $self ) = @_;
|
|
warn "No usage string is set" unless $self->{usage}; # XXX
|
|
return "Usage: " . ($self->{usage} || '') . "\n";
|
|
}
|
|
|
|
sub descr {
|
|
my ( $self ) = @_;
|
|
warn "No description string is set" unless $self->{description}; # XXX
|
|
my $descr = ($self->{description} || $self->{program_name} || '')
|
|
. " For more details, please use the --help option, "
|
|
. "or try 'perldoc $PROGRAM_NAME' "
|
|
. "for complete documentation.";
|
|
$descr = join("\n", $descr =~ m/(.{0,80})(?:\s+|$)/g)
|
|
unless $ENV{DONT_BREAK_LINES};
|
|
$descr =~ s/ +$//mg;
|
|
return $descr;
|
|
}
|
|
|
|
sub usage_or_errors {
|
|
my ( $self, $file, $return ) = @_;
|
|
$file ||= $self->{file} || __FILE__;
|
|
|
|
if ( !$self->{description} || !$self->{usage} ) {
|
|
MKDEBUG && _d("Getting description and usage from SYNOPSIS in", $file);
|
|
my %synop = $self->_parse_synopsis($file);
|
|
$self->{description} ||= $synop{description};
|
|
$self->{usage} ||= $synop{usage};
|
|
MKDEBUG && _d("Description:", $self->{description},
|
|
"\nUsage:", $self->{usage});
|
|
}
|
|
|
|
if ( $self->{opts}->{help}->{got} ) {
|
|
print $self->print_usage() or die "Cannot print usage: $OS_ERROR";
|
|
exit 0 unless $return;
|
|
}
|
|
elsif ( scalar @{$self->{errors}} ) {
|
|
print $self->print_errors() or die "Cannot print errors: $OS_ERROR";
|
|
exit 0 unless $return;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
sub print_errors {
|
|
my ( $self ) = @_;
|
|
my $usage = $self->usage() . "\n";
|
|
if ( (my @errors = @{$self->{errors}}) ) {
|
|
$usage .= join("\n * ", 'Errors in command-line arguments:', @errors)
|
|
. "\n";
|
|
}
|
|
return $usage . "\n" . $self->descr();
|
|
}
|
|
|
|
sub print_usage {
|
|
my ( $self ) = @_;
|
|
die "Run get_opts() before print_usage()" unless $self->{got_opts};
|
|
my @opts = values %{$self->{opts}};
|
|
|
|
my $maxl = max(
|
|
map {
|
|
length($_->{long}) # option long name
|
|
+ ($_->{is_negatable} ? 4 : 0) # "[no]" if opt is negatable
|
|
+ ($_->{type} ? 2 : 0) # "=x" where x is the opt type
|
|
}
|
|
@opts);
|
|
|
|
my $maxs = max(0,
|
|
map {
|
|
length($_)
|
|
+ ($self->{opts}->{$_}->{is_negatable} ? 4 : 0)
|
|
+ ($self->{opts}->{$_}->{type} ? 2 : 0)
|
|
}
|
|
values %{$self->{short_opts}});
|
|
|
|
my $lcol = max($maxl, ($maxs + 3));
|
|
my $rcol = 80 - $lcol - 6;
|
|
my $rpad = ' ' x ( 80 - $rcol );
|
|
|
|
$maxs = max($lcol - 3, $maxs);
|
|
|
|
my $usage = $self->descr() . "\n" . $self->usage();
|
|
|
|
my @groups = reverse sort grep { $_ ne 'default'; } keys %{$self->{groups}};
|
|
push @groups, 'default';
|
|
|
|
foreach my $group ( reverse @groups ) {
|
|
$usage .= "\n".($group eq 'default' ? 'Options' : $group).":\n\n";
|
|
foreach my $opt (
|
|
sort { $a->{long} cmp $b->{long} }
|
|
grep { $_->{group} eq $group }
|
|
@opts )
|
|
{
|
|
my $long = $opt->{is_negatable} ? "[no]$opt->{long}" : $opt->{long};
|
|
my $short = $opt->{short};
|
|
my $desc = $opt->{desc};
|
|
|
|
$long .= $opt->{type} ? "=$opt->{type}" : "";
|
|
|
|
if ( $opt->{type} && $opt->{type} eq 'm' ) {
|
|
my ($s) = $desc =~ m/\(suffix (.)\)/;
|
|
$s ||= 's';
|
|
$desc =~ s/\s+\(suffix .\)//;
|
|
$desc .= ". Optional suffix s=seconds, m=minutes, h=hours, "
|
|
. "d=days; if no suffix, $s is used.";
|
|
}
|
|
$desc = join("\n$rpad", grep { $_ } $desc =~ m/(.{0,$rcol})(?:\s+|$)/g);
|
|
$desc =~ s/ +$//mg;
|
|
if ( $short ) {
|
|
$usage .= sprintf(" --%-${maxs}s -%s %s\n", $long, $short, $desc);
|
|
}
|
|
else {
|
|
$usage .= sprintf(" --%-${lcol}s %s\n", $long, $desc);
|
|
}
|
|
}
|
|
}
|
|
|
|
$usage .= "\nOption types: s=string, i=integer, f=float, h/H/a/A=comma-separated list, d=DSN, z=size, m=time\n";
|
|
|
|
if ( (my @rules = @{$self->{rules}}) ) {
|
|
$usage .= "\nRules:\n\n";
|
|
$usage .= join("\n", map { " $_" } @rules) . "\n";
|
|
}
|
|
if ( $self->{DSNParser} ) {
|
|
$usage .= "\n" . $self->{DSNParser}->usage();
|
|
}
|
|
$usage .= "\nOptions and values after processing arguments:\n\n";
|
|
foreach my $opt ( sort { $a->{long} cmp $b->{long} } @opts ) {
|
|
my $val = $opt->{value};
|
|
my $type = $opt->{type} || '';
|
|
my $bool = $opt->{spec} =~ m/^[\w-]+(?:\|[\w-])?!?$/;
|
|
$val = $bool ? ( $val ? 'TRUE' : 'FALSE' )
|
|
: !defined $val ? '(No value)'
|
|
: $type eq 'd' ? $self->{DSNParser}->as_string($val)
|
|
: $type =~ m/H|h/ ? join(',', sort keys %$val)
|
|
: $type =~ m/A|a/ ? join(',', @$val)
|
|
: $val;
|
|
$usage .= sprintf(" --%-${lcol}s %s\n", $opt->{long}, $val);
|
|
}
|
|
return $usage;
|
|
}
|
|
|
|
sub prompt_noecho {
|
|
shift @_ if ref $_[0] eq __PACKAGE__;
|
|
my ( $prompt ) = @_;
|
|
local $OUTPUT_AUTOFLUSH = 1;
|
|
print $prompt
|
|
or die "Cannot print: $OS_ERROR";
|
|
my $response;
|
|
eval {
|
|
require Term::ReadKey;
|
|
Term::ReadKey::ReadMode('noecho');
|
|
chomp($response = <STDIN>);
|
|
Term::ReadKey::ReadMode('normal');
|
|
print "\n"
|
|
or die "Cannot print: $OS_ERROR";
|
|
};
|
|
if ( $EVAL_ERROR ) {
|
|
die "Cannot read response; is Term::ReadKey installed? $EVAL_ERROR";
|
|
}
|
|
return $response;
|
|
}
|
|
|
|
if ( MKDEBUG ) {
|
|
print '# ', $^X, ' ', $], "\n";
|
|
my $uname = `uname -a`;
|
|
if ( $uname ) {
|
|
$uname =~ s/\s+/ /g;
|
|
print "# $uname\n";
|
|
}
|
|
printf("# %s Ver %s Distrib %s Changeset %s line %d\n",
|
|
$PROGRAM_NAME, ($main::VERSION || ''), ($main::DISTRIB || ''),
|
|
($main::SVN_REV || ''), __LINE__);
|
|
print('# Arguments: ',
|
|
join(' ', map { my $a = "_[$_]_"; $a =~ s/\n/\n# /g; $a; } @ARGV), "\n");
|
|
}
|
|
|
|
sub _read_config_file {
|
|
my ( $self, $filename ) = @_;
|
|
open my $fh, "<", $filename or die "Cannot open $filename: $OS_ERROR\n";
|
|
my @args;
|
|
my $prefix = '--';
|
|
my $parse = 1;
|
|
|
|
LINE:
|
|
while ( my $line = <$fh> ) {
|
|
chomp $line;
|
|
next LINE if $line =~ m/^\s*(?:\#|\;|$)/;
|
|
$line =~ s/\s+#.*$//g;
|
|
$line =~ s/^\s+|\s+$//g;
|
|
if ( $line eq '--' ) {
|
|
$prefix = '';
|
|
$parse = 0;
|
|
next LINE;
|
|
}
|
|
if ( $parse
|
|
&& (my($opt, $arg) = $line =~ m/^\s*([^=\s]+?)(?:\s*=\s*(.*?)\s*)?$/)
|
|
) {
|
|
push @args, grep { defined $_ } ("$prefix$opt", $arg);
|
|
}
|
|
elsif ( $line =~ m/./ ) {
|
|
push @args, $line;
|
|
}
|
|
else {
|
|
die "Syntax error in file $filename at line $INPUT_LINE_NUMBER";
|
|
}
|
|
}
|
|
close $fh;
|
|
return @args;
|
|
}
|
|
|
|
sub read_para_after {
|
|
my ( $self, $file, $regex ) = @_;
|
|
open my $fh, "<", $file or die "Can't open $file: $OS_ERROR";
|
|
local $INPUT_RECORD_SEPARATOR = '';
|
|
my $para;
|
|
while ( $para = <$fh> ) {
|
|
next unless $para =~ m/^=pod$/m;
|
|
last;
|
|
}
|
|
while ( $para = <$fh> ) {
|
|
next unless $para =~ m/$regex/;
|
|
last;
|
|
}
|
|
$para = <$fh>;
|
|
chomp($para);
|
|
close $fh or die "Can't close $file: $OS_ERROR";
|
|
return $para;
|
|
}
|
|
|
|
sub clone {
|
|
my ( $self ) = @_;
|
|
|
|
my %clone = map {
|
|
my $hashref = $self->{$_};
|
|
my $val_copy = {};
|
|
foreach my $key ( keys %$hashref ) {
|
|
my $ref = ref $hashref->{$key};
|
|
$val_copy->{$key} = !$ref ? $hashref->{$key}
|
|
: $ref eq 'HASH' ? { %{$hashref->{$key}} }
|
|
: $ref eq 'ARRAY' ? [ @{$hashref->{$key}} ]
|
|
: $hashref->{$key};
|
|
}
|
|
$_ => $val_copy;
|
|
} qw(opts short_opts defaults);
|
|
|
|
foreach my $scalar ( qw(got_opts) ) {
|
|
$clone{$scalar} = $self->{$scalar};
|
|
}
|
|
|
|
return bless \%clone;
|
|
}
|
|
|
|
sub _parse_size {
|
|
my ( $self, $opt, $val ) = @_;
|
|
|
|
if ( lc($val || '') eq 'null' ) {
|
|
MKDEBUG && _d('NULL size for', $opt->{long});
|
|
$opt->{value} = 'null';
|
|
return;
|
|
}
|
|
|
|
my %factor_for = (k => 1_024, M => 1_048_576, G => 1_073_741_824);
|
|
my ($pre, $num, $factor) = $val =~ m/^([+-])?(\d+)([kMG])?$/;
|
|
if ( defined $num ) {
|
|
if ( $factor ) {
|
|
$num *= $factor_for{$factor};
|
|
MKDEBUG && _d('Setting option', $opt->{y},
|
|
'to num', $num, '* factor', $factor);
|
|
}
|
|
$opt->{value} = ($pre || '') . $num;
|
|
}
|
|
else {
|
|
$self->save_error("Invalid size for --$opt->{long}");
|
|
}
|
|
return;
|
|
}
|
|
|
|
sub _parse_attribs {
|
|
my ( $self, $option, $attribs ) = @_;
|
|
my $types = $self->{types};
|
|
return $option
|
|
. ($attribs->{'short form'} ? '|' . $attribs->{'short form'} : '' )
|
|
. ($attribs->{'negatable'} ? '!' : '' )
|
|
. ($attribs->{'cumulative'} ? '+' : '' )
|
|
. ($attribs->{'type'} ? '=' . $types->{$attribs->{type}} : '' );
|
|
}
|
|
|
|
sub _parse_synopsis {
|
|
my ( $self, $file ) = @_;
|
|
$file ||= $self->{file} || __FILE__;
|
|
MKDEBUG && _d("Parsing SYNOPSIS in", $file);
|
|
|
|
local $INPUT_RECORD_SEPARATOR = ''; # read paragraphs
|
|
open my $fh, "<", $file or die "Cannot open $file: $OS_ERROR";
|
|
my $para;
|
|
1 while defined($para = <$fh>) && $para !~ m/^=head1 SYNOPSIS/;
|
|
die "$file does not contain a SYNOPSIS section" unless $para;
|
|
my @synop;
|
|
for ( 1..2 ) { # 1 for the usage, 2 for the description
|
|
my $para = <$fh>;
|
|
push @synop, $para;
|
|
}
|
|
close $fh;
|
|
MKDEBUG && _d("Raw SYNOPSIS text:", @synop);
|
|
my ($usage, $desc) = @synop;
|
|
die "The SYNOPSIS section in $file is not formatted properly"
|
|
unless $usage && $desc;
|
|
|
|
$usage =~ s/^\s*Usage:\s+(.+)/$1/;
|
|
chomp $usage;
|
|
|
|
$desc =~ s/\n/ /g;
|
|
$desc =~ s/\s{2,}/ /g;
|
|
$desc =~ s/\. ([A-Z][a-z])/. $1/g;
|
|
$desc =~ s/\s+$//;
|
|
|
|
return (
|
|
description => $desc,
|
|
usage => $usage,
|
|
);
|
|
};
|
|
|
|
sub _d {
|
|
my ($package, undef, $line) = caller 0;
|
|
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
|
|
map { defined $_ ? $_ : 'undef' }
|
|
@_;
|
|
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
|
|
}
|
|
|
|
1;
|
|
}
|
|
# ###########################################################################
|
|
# End OptionParser package
|
|
# ###########################################################################
|
|
|
|
# ###########################################################################
|
|
# DSNParser package
|
|
# This package is a copy without comments from the original. The original
|
|
# with comments and its test file can be found in the Bazaar repository at,
|
|
# lib/DSNParser.pm
|
|
# t/lib/DSNParser.t
|
|
# See https://launchpad.net/percona-toolkit for more information.
|
|
# ###########################################################################
|
|
{
|
|
package DSNParser;
|
|
|
|
use strict;
|
|
use warnings FATAL => 'all';
|
|
use English qw(-no_match_vars);
|
|
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
|
|
|
|
use Data::Dumper;
|
|
$Data::Dumper::Indent = 0;
|
|
$Data::Dumper::Quotekeys = 0;
|
|
|
|
eval {
|
|
require DBI;
|
|
};
|
|
my $have_dbi = $EVAL_ERROR ? 0 : 1;
|
|
|
|
sub new {
|
|
my ( $class, %args ) = @_;
|
|
foreach my $arg ( qw(opts) ) {
|
|
die "I need a $arg argument" unless $args{$arg};
|
|
}
|
|
my $self = {
|
|
opts => {} # h, P, u, etc. Should come from DSN OPTIONS section in POD.
|
|
};
|
|
foreach my $opt ( @{$args{opts}} ) {
|
|
if ( !$opt->{key} || !$opt->{desc} ) {
|
|
die "Invalid DSN option: ", Dumper($opt);
|
|
}
|
|
MKDEBUG && _d('DSN option:',
|
|
join(', ',
|
|
map { "$_=" . (defined $opt->{$_} ? ($opt->{$_} || '') : 'undef') }
|
|
keys %$opt
|
|
)
|
|
);
|
|
$self->{opts}->{$opt->{key}} = {
|
|
dsn => $opt->{dsn},
|
|
desc => $opt->{desc},
|
|
copy => $opt->{copy} || 0,
|
|
};
|
|
}
|
|
return bless $self, $class;
|
|
}
|
|
|
|
sub prop {
|
|
my ( $self, $prop, $value ) = @_;
|
|
if ( @_ > 2 ) {
|
|
MKDEBUG && _d('Setting', $prop, 'property');
|
|
$self->{$prop} = $value;
|
|
}
|
|
return $self->{$prop};
|
|
}
|
|
|
|
sub parse {
|
|
my ( $self, $dsn, $prev, $defaults ) = @_;
|
|
if ( !$dsn ) {
|
|
MKDEBUG && _d('No DSN to parse');
|
|
return;
|
|
}
|
|
MKDEBUG && _d('Parsing', $dsn);
|
|
$prev ||= {};
|
|
$defaults ||= {};
|
|
my %given_props;
|
|
my %final_props;
|
|
my $opts = $self->{opts};
|
|
|
|
foreach my $dsn_part ( split(/,/, $dsn) ) {
|
|
if ( my ($prop_key, $prop_val) = $dsn_part =~ m/^(.)=(.*)$/ ) {
|
|
$given_props{$prop_key} = $prop_val;
|
|
}
|
|
else {
|
|
MKDEBUG && _d('Interpreting', $dsn_part, 'as h=', $dsn_part);
|
|
$given_props{h} = $dsn_part;
|
|
}
|
|
}
|
|
|
|
foreach my $key ( keys %$opts ) {
|
|
MKDEBUG && _d('Finding value for', $key);
|
|
$final_props{$key} = $given_props{$key};
|
|
if ( !defined $final_props{$key}
|
|
&& defined $prev->{$key} && $opts->{$key}->{copy} )
|
|
{
|
|
$final_props{$key} = $prev->{$key};
|
|
MKDEBUG && _d('Copying value for', $key, 'from previous DSN');
|
|
}
|
|
if ( !defined $final_props{$key} ) {
|
|
$final_props{$key} = $defaults->{$key};
|
|
MKDEBUG && _d('Copying value for', $key, 'from defaults');
|
|
}
|
|
}
|
|
|
|
foreach my $key ( keys %given_props ) {
|
|
die "Unknown DSN option '$key' in '$dsn'. For more details, "
|
|
. "please use the --help option, or try 'perldoc $PROGRAM_NAME' "
|
|
. "for complete documentation."
|
|
unless exists $opts->{$key};
|
|
}
|
|
if ( (my $required = $self->prop('required')) ) {
|
|
foreach my $key ( keys %$required ) {
|
|
die "Missing required DSN option '$key' in '$dsn'. For more details, "
|
|
. "please use the --help option, or try 'perldoc $PROGRAM_NAME' "
|
|
. "for complete documentation."
|
|
unless $final_props{$key};
|
|
}
|
|
}
|
|
|
|
return \%final_props;
|
|
}
|
|
|
|
sub parse_options {
|
|
my ( $self, $o ) = @_;
|
|
die 'I need an OptionParser object' unless ref $o eq 'OptionParser';
|
|
my $dsn_string
|
|
= join(',',
|
|
map { "$_=".$o->get($_); }
|
|
grep { $o->has($_) && $o->get($_) }
|
|
keys %{$self->{opts}}
|
|
);
|
|
MKDEBUG && _d('DSN string made from options:', $dsn_string);
|
|
return $self->parse($dsn_string);
|
|
}
|
|
|
|
sub as_string {
|
|
my ( $self, $dsn, $props ) = @_;
|
|
return $dsn unless ref $dsn;
|
|
my %allowed = $props ? map { $_=>1 } @$props : ();
|
|
return join(',',
|
|
map { "$_=" . ($_ eq 'p' ? '...' : $dsn->{$_}) }
|
|
grep { defined $dsn->{$_} && $self->{opts}->{$_} }
|
|
grep { !$props || $allowed{$_} }
|
|
sort keys %$dsn );
|
|
}
|
|
|
|
sub usage {
|
|
my ( $self ) = @_;
|
|
my $usage
|
|
= "DSN syntax is key=value[,key=value...] Allowable DSN keys:\n\n"
|
|
. " KEY COPY MEANING\n"
|
|
. " === ==== =============================================\n";
|
|
my %opts = %{$self->{opts}};
|
|
foreach my $key ( sort keys %opts ) {
|
|
$usage .= " $key "
|
|
. ($opts{$key}->{copy} ? 'yes ' : 'no ')
|
|
. ($opts{$key}->{desc} || '[No description]')
|
|
. "\n";
|
|
}
|
|
$usage .= "\n If the DSN is a bareword, the word is treated as the 'h' key.\n";
|
|
return $usage;
|
|
}
|
|
|
|
sub get_cxn_params {
|
|
my ( $self, $info ) = @_;
|
|
my $dsn;
|
|
my %opts = %{$self->{opts}};
|
|
my $driver = $self->prop('dbidriver') || '';
|
|
if ( $driver eq 'Pg' ) {
|
|
$dsn = 'DBI:Pg:dbname=' . ( $info->{D} || '' ) . ';'
|
|
. join(';', map { "$opts{$_}->{dsn}=$info->{$_}" }
|
|
grep { defined $info->{$_} }
|
|
qw(h P));
|
|
}
|
|
else {
|
|
$dsn = 'DBI:mysql:' . ( $info->{D} || '' ) . ';'
|
|
. join(';', map { "$opts{$_}->{dsn}=$info->{$_}" }
|
|
grep { defined $info->{$_} }
|
|
qw(F h P S A))
|
|
. ';mysql_read_default_group=client';
|
|
}
|
|
MKDEBUG && _d($dsn);
|
|
return ($dsn, $info->{u}, $info->{p});
|
|
}
|
|
|
|
sub fill_in_dsn {
|
|
my ( $self, $dbh, $dsn ) = @_;
|
|
my $vars = $dbh->selectall_hashref('SHOW VARIABLES', 'Variable_name');
|
|
my ($user, $db) = $dbh->selectrow_array('SELECT USER(), DATABASE()');
|
|
$user =~ s/@.*//;
|
|
$dsn->{h} ||= $vars->{hostname}->{Value};
|
|
$dsn->{S} ||= $vars->{'socket'}->{Value};
|
|
$dsn->{P} ||= $vars->{port}->{Value};
|
|
$dsn->{u} ||= $user;
|
|
$dsn->{D} ||= $db;
|
|
}
|
|
|
|
sub get_dbh {
|
|
my ( $self, $cxn_string, $user, $pass, $opts ) = @_;
|
|
$opts ||= {};
|
|
my $defaults = {
|
|
AutoCommit => 0,
|
|
RaiseError => 1,
|
|
PrintError => 0,
|
|
ShowErrorStatement => 1,
|
|
mysql_enable_utf8 => ($cxn_string =~ m/charset=utf8/i ? 1 : 0),
|
|
};
|
|
@{$defaults}{ keys %$opts } = values %$opts;
|
|
|
|
if ( $opts->{mysql_use_result} ) {
|
|
$defaults->{mysql_use_result} = 1;
|
|
}
|
|
|
|
if ( !$have_dbi ) {
|
|
die "Cannot connect to MySQL because the Perl DBI module is not "
|
|
. "installed or not found. Run 'perl -MDBI' to see the directories "
|
|
. "that Perl searches for DBI. If DBI is not installed, try:\n"
|
|
. " Debian/Ubuntu apt-get install libdbi-perl\n"
|
|
. " RHEL/CentOS yum install perl-DBI\n"
|
|
. " OpenSolaris pgk install pkg:/SUNWpmdbi\n";
|
|
|
|
}
|
|
|
|
my $dbh;
|
|
my $tries = 2;
|
|
while ( !$dbh && $tries-- ) {
|
|
MKDEBUG && _d($cxn_string, ' ', $user, ' ', $pass,
|
|
join(', ', map { "$_=>$defaults->{$_}" } keys %$defaults ));
|
|
|
|
eval {
|
|
$dbh = DBI->connect($cxn_string, $user, $pass, $defaults);
|
|
|
|
if ( $cxn_string =~ m/mysql/i ) {
|
|
my $sql;
|
|
|
|
$sql = 'SELECT @@SQL_MODE';
|
|
MKDEBUG && _d($dbh, $sql);
|
|
my ($sql_mode) = $dbh->selectrow_array($sql);
|
|
|
|
$sql = 'SET @@SQL_QUOTE_SHOW_CREATE = 1'
|
|
. '/*!40101, @@SQL_MODE=\'NO_AUTO_VALUE_ON_ZERO'
|
|
. ($sql_mode ? ",$sql_mode" : '')
|
|
. '\'*/';
|
|
MKDEBUG && _d($dbh, $sql);
|
|
$dbh->do($sql);
|
|
|
|
if ( my ($charset) = $cxn_string =~ m/charset=(\w+)/ ) {
|
|
$sql = "/*!40101 SET NAMES $charset*/";
|
|
MKDEBUG && _d($dbh, ':', $sql);
|
|
$dbh->do($sql);
|
|
MKDEBUG && _d('Enabling charset for STDOUT');
|
|
if ( $charset eq 'utf8' ) {
|
|
binmode(STDOUT, ':utf8')
|
|
or die "Can't binmode(STDOUT, ':utf8'): $OS_ERROR";
|
|
}
|
|
else {
|
|
binmode(STDOUT) or die "Can't binmode(STDOUT): $OS_ERROR";
|
|
}
|
|
}
|
|
|
|
if ( $self->prop('set-vars') ) {
|
|
$sql = "SET " . $self->prop('set-vars');
|
|
MKDEBUG && _d($dbh, ':', $sql);
|
|
$dbh->do($sql);
|
|
}
|
|
}
|
|
};
|
|
if ( !$dbh && $EVAL_ERROR ) {
|
|
MKDEBUG && _d($EVAL_ERROR);
|
|
if ( $EVAL_ERROR =~ m/not a compiled character set|character set utf8/ ) {
|
|
MKDEBUG && _d('Going to try again without utf8 support');
|
|
delete $defaults->{mysql_enable_utf8};
|
|
}
|
|
elsif ( $EVAL_ERROR =~ m/locate DBD\/mysql/i ) {
|
|
die "Cannot connect to MySQL because the Perl DBD::mysql module is "
|
|
. "not installed or not found. Run 'perl -MDBD::mysql' to see "
|
|
. "the directories that Perl searches for DBD::mysql. If "
|
|
. "DBD::mysql is not installed, try:\n"
|
|
. " Debian/Ubuntu apt-get install libdbd-mysql-perl\n"
|
|
. " RHEL/CentOS yum install perl-DBD-MySQL\n"
|
|
. " OpenSolaris pgk install pkg:/SUNWapu13dbd-mysql\n";
|
|
}
|
|
if ( !$tries ) {
|
|
die $EVAL_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
MKDEBUG && _d('DBH info: ',
|
|
$dbh,
|
|
Dumper($dbh->selectrow_hashref(
|
|
'SELECT DATABASE(), CONNECTION_ID(), VERSION()/*!50038 , @@hostname*/')),
|
|
'Connection info:', $dbh->{mysql_hostinfo},
|
|
'Character set info:', Dumper($dbh->selectall_arrayref(
|
|
'SHOW VARIABLES LIKE "character_set%"', { Slice => {}})),
|
|
'$DBD::mysql::VERSION:', $DBD::mysql::VERSION,
|
|
'$DBI::VERSION:', $DBI::VERSION,
|
|
);
|
|
|
|
return $dbh;
|
|
}
|
|
|
|
sub get_hostname {
|
|
my ( $self, $dbh ) = @_;
|
|
if ( my ($host) = ($dbh->{mysql_hostinfo} || '') =~ m/^(\w+) via/ ) {
|
|
return $host;
|
|
}
|
|
my ( $hostname, $one ) = $dbh->selectrow_array(
|
|
'SELECT /*!50038 @@hostname, */ 1');
|
|
return $hostname;
|
|
}
|
|
|
|
sub disconnect {
|
|
my ( $self, $dbh ) = @_;
|
|
MKDEBUG && $self->print_active_handles($dbh);
|
|
$dbh->disconnect;
|
|
}
|
|
|
|
sub print_active_handles {
|
|
my ( $self, $thing, $level ) = @_;
|
|
$level ||= 0;
|
|
printf("# Active %sh: %s %s %s\n", ($thing->{Type} || 'undef'), "\t" x $level,
|
|
$thing, (($thing->{Type} || '') eq 'st' ? $thing->{Statement} || '' : ''))
|
|
or die "Cannot print: $OS_ERROR";
|
|
foreach my $handle ( grep {defined} @{ $thing->{ChildHandles} } ) {
|
|
$self->print_active_handles( $handle, $level + 1 );
|
|
}
|
|
}
|
|
|
|
sub copy {
|
|
my ( $self, $dsn_1, $dsn_2, %args ) = @_;
|
|
die 'I need a dsn_1 argument' unless $dsn_1;
|
|
die 'I need a dsn_2 argument' unless $dsn_2;
|
|
my %new_dsn = map {
|
|
my $key = $_;
|
|
my $val;
|
|
if ( $args{overwrite} ) {
|
|
$val = defined $dsn_1->{$key} ? $dsn_1->{$key} : $dsn_2->{$key};
|
|
}
|
|
else {
|
|
$val = defined $dsn_2->{$key} ? $dsn_2->{$key} : $dsn_1->{$key};
|
|
}
|
|
$key => $val;
|
|
} keys %{$self->{opts}};
|
|
return \%new_dsn;
|
|
}
|
|
|
|
sub _d {
|
|
my ($package, undef, $line) = caller 0;
|
|
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
|
|
map { defined $_ ? $_ : 'undef' }
|
|
@_;
|
|
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
|
|
}
|
|
|
|
1;
|
|
}
|
|
# ###########################################################################
|
|
# End DSNParser package
|
|
# ###########################################################################
|
|
|
|
# ###########################################################################
|
|
# Daemon package
|
|
# This package is a copy without comments from the original. The original
|
|
# with comments and its test file can be found in the Bazaar repository at,
|
|
# lib/Daemon.pm
|
|
# t/lib/Daemon.t
|
|
# See https://launchpad.net/percona-toolkit for more information.
|
|
# ###########################################################################
|
|
{
|
|
package Daemon;
|
|
|
|
use strict;
|
|
use warnings FATAL => 'all';
|
|
use English qw(-no_match_vars);
|
|
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
|
|
|
|
use POSIX qw(setsid);
|
|
|
|
sub new {
|
|
my ( $class, %args ) = @_;
|
|
foreach my $arg ( qw(o) ) {
|
|
die "I need a $arg argument" unless $args{$arg};
|
|
}
|
|
my $o = $args{o};
|
|
my $self = {
|
|
o => $o,
|
|
log_file => $o->has('log') ? $o->get('log') : undef,
|
|
PID_file => $o->has('pid') ? $o->get('pid') : undef,
|
|
};
|
|
|
|
check_PID_file(undef, $self->{PID_file});
|
|
|
|
MKDEBUG && _d('Daemonized child will log to', $self->{log_file});
|
|
return bless $self, $class;
|
|
}
|
|
|
|
sub daemonize {
|
|
my ( $self ) = @_;
|
|
|
|
MKDEBUG && _d('About to fork and daemonize');
|
|
defined (my $pid = fork()) or die "Cannot fork: $OS_ERROR";
|
|
if ( $pid ) {
|
|
MKDEBUG && _d('I am the parent and now I die');
|
|
exit;
|
|
}
|
|
|
|
$self->{PID_owner} = $PID;
|
|
$self->{child} = 1;
|
|
|
|
POSIX::setsid() or die "Cannot start a new session: $OS_ERROR";
|
|
chdir '/' or die "Cannot chdir to /: $OS_ERROR";
|
|
|
|
$self->_make_PID_file();
|
|
|
|
$OUTPUT_AUTOFLUSH = 1;
|
|
|
|
if ( -t STDIN ) {
|
|
close STDIN;
|
|
open STDIN, '/dev/null'
|
|
or die "Cannot reopen STDIN to /dev/null: $OS_ERROR";
|
|
}
|
|
|
|
if ( $self->{log_file} ) {
|
|
close STDOUT;
|
|
open STDOUT, '>>', $self->{log_file}
|
|
or die "Cannot open log file $self->{log_file}: $OS_ERROR";
|
|
|
|
close STDERR;
|
|
open STDERR, ">&STDOUT"
|
|
or die "Cannot dupe STDERR to STDOUT: $OS_ERROR";
|
|
}
|
|
else {
|
|
if ( -t STDOUT ) {
|
|
close STDOUT;
|
|
open STDOUT, '>', '/dev/null'
|
|
or die "Cannot reopen STDOUT to /dev/null: $OS_ERROR";
|
|
}
|
|
if ( -t STDERR ) {
|
|
close STDERR;
|
|
open STDERR, '>', '/dev/null'
|
|
or die "Cannot reopen STDERR to /dev/null: $OS_ERROR";
|
|
}
|
|
}
|
|
|
|
MKDEBUG && _d('I am the child and now I live daemonized');
|
|
return;
|
|
}
|
|
|
|
sub check_PID_file {
|
|
my ( $self, $file ) = @_;
|
|
my $PID_file = $self ? $self->{PID_file} : $file;
|
|
MKDEBUG && _d('Checking PID file', $PID_file);
|
|
if ( $PID_file && -f $PID_file ) {
|
|
my $pid;
|
|
eval { chomp($pid = `cat $PID_file`); };
|
|
die "Cannot cat $PID_file: $OS_ERROR" if $EVAL_ERROR;
|
|
MKDEBUG && _d('PID file exists; it contains PID', $pid);
|
|
if ( $pid ) {
|
|
my $pid_is_alive = kill 0, $pid;
|
|
if ( $pid_is_alive ) {
|
|
die "The PID file $PID_file already exists "
|
|
. " and the PID that it contains, $pid, is running";
|
|
}
|
|
else {
|
|
warn "Overwriting PID file $PID_file because the PID that it "
|
|
. "contains, $pid, is not running";
|
|
}
|
|
}
|
|
else {
|
|
die "The PID file $PID_file already exists but it does not "
|
|
. "contain a PID";
|
|
}
|
|
}
|
|
else {
|
|
MKDEBUG && _d('No PID file');
|
|
}
|
|
return;
|
|
}
|
|
|
|
sub make_PID_file {
|
|
my ( $self ) = @_;
|
|
if ( exists $self->{child} ) {
|
|
die "Do not call Daemon::make_PID_file() for daemonized scripts";
|
|
}
|
|
$self->_make_PID_file();
|
|
$self->{PID_owner} = $PID;
|
|
return;
|
|
}
|
|
|
|
sub _make_PID_file {
|
|
my ( $self ) = @_;
|
|
|
|
my $PID_file = $self->{PID_file};
|
|
if ( !$PID_file ) {
|
|
MKDEBUG && _d('No PID file to create');
|
|
return;
|
|
}
|
|
|
|
$self->check_PID_file();
|
|
|
|
open my $PID_FH, '>', $PID_file
|
|
or die "Cannot open PID file $PID_file: $OS_ERROR";
|
|
print $PID_FH $PID
|
|
or die "Cannot print to PID file $PID_file: $OS_ERROR";
|
|
close $PID_FH
|
|
or die "Cannot close PID file $PID_file: $OS_ERROR";
|
|
|
|
MKDEBUG && _d('Created PID file:', $self->{PID_file});
|
|
return;
|
|
}
|
|
|
|
sub _remove_PID_file {
|
|
my ( $self ) = @_;
|
|
if ( $self->{PID_file} && -f $self->{PID_file} ) {
|
|
unlink $self->{PID_file}
|
|
or warn "Cannot remove PID file $self->{PID_file}: $OS_ERROR";
|
|
MKDEBUG && _d('Removed PID file');
|
|
}
|
|
else {
|
|
MKDEBUG && _d('No PID to remove');
|
|
}
|
|
return;
|
|
}
|
|
|
|
sub DESTROY {
|
|
my ( $self ) = @_;
|
|
|
|
$self->_remove_PID_file() if ($self->{PID_owner} || 0) == $PID;
|
|
|
|
return;
|
|
}
|
|
|
|
sub _d {
|
|
my ($package, undef, $line) = caller 0;
|
|
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
|
|
map { defined $_ ? $_ : 'undef' }
|
|
@_;
|
|
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
|
|
}
|
|
|
|
1;
|
|
}
|
|
# ###########################################################################
|
|
# End Daemon package
|
|
# ###########################################################################
|
|
|
|
# ###########################################################################
|
|
# Quoter package
|
|
# This package is a copy without comments from the original. The original
|
|
# with comments and its test file can be found in the Bazaar repository at,
|
|
# lib/Quoter.pm
|
|
# t/lib/Quoter.t
|
|
# See https://launchpad.net/percona-toolkit for more information.
|
|
# ###########################################################################
|
|
{
|
|
package Quoter;
|
|
|
|
use strict;
|
|
use warnings FATAL => 'all';
|
|
use English qw(-no_match_vars);
|
|
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
|
|
|
|
sub new {
|
|
my ( $class, %args ) = @_;
|
|
return bless {}, $class;
|
|
}
|
|
|
|
sub quote {
|
|
my ( $self, @vals ) = @_;
|
|
foreach my $val ( @vals ) {
|
|
$val =~ s/`/``/g;
|
|
}
|
|
return join('.', map { '`' . $_ . '`' } @vals);
|
|
}
|
|
|
|
sub quote_val {
|
|
my ( $self, $val ) = @_;
|
|
|
|
return 'NULL' unless defined $val; # undef = NULL
|
|
return "''" if $val eq ''; # blank string = ''
|
|
return $val if $val =~ m/^0x[0-9a-fA-F]+$/; # hex data
|
|
|
|
$val =~ s/(['\\])/\\$1/g;
|
|
return "'$val'";
|
|
}
|
|
|
|
sub split_unquote {
|
|
my ( $self, $db_tbl, $default_db ) = @_;
|
|
$db_tbl =~ s/`//g;
|
|
my ( $db, $tbl ) = split(/[.]/, $db_tbl);
|
|
if ( !$tbl ) {
|
|
$tbl = $db;
|
|
$db = $default_db;
|
|
}
|
|
return ($db, $tbl);
|
|
}
|
|
|
|
sub literal_like {
|
|
my ( $self, $like ) = @_;
|
|
return unless $like;
|
|
$like =~ s/([%_])/\\$1/g;
|
|
return "'$like'";
|
|
}
|
|
|
|
sub join_quote {
|
|
my ( $self, $default_db, $db_tbl ) = @_;
|
|
return unless $db_tbl;
|
|
my ($db, $tbl) = split(/[.]/, $db_tbl);
|
|
if ( !$tbl ) {
|
|
$tbl = $db;
|
|
$db = $default_db;
|
|
}
|
|
$db = "`$db`" if $db && $db !~ m/^`/;
|
|
$tbl = "`$tbl`" if $tbl && $tbl !~ m/^`/;
|
|
return $db ? "$db.$tbl" : $tbl;
|
|
}
|
|
|
|
1;
|
|
}
|
|
# ###########################################################################
|
|
# End Quoter package
|
|
# ###########################################################################
|
|
|
|
# ###########################################################################
|
|
# VersionParser package
|
|
# This package is a copy without comments from the original. The original
|
|
# with comments and its test file can be found in the Bazaar repository at,
|
|
# lib/VersionParser.pm
|
|
# t/lib/VersionParser.t
|
|
# See https://launchpad.net/percona-toolkit for more information.
|
|
# ###########################################################################
|
|
{
|
|
package VersionParser;
|
|
|
|
use strict;
|
|
use warnings FATAL => 'all';
|
|
use English qw(-no_match_vars);
|
|
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
|
|
|
|
sub new {
|
|
my ( $class ) = @_;
|
|
bless {}, $class;
|
|
}
|
|
|
|
sub parse {
|
|
my ( $self, $str ) = @_;
|
|
my $result = sprintf('%03d%03d%03d', $str =~ m/(\d+)/g);
|
|
MKDEBUG && _d($str, 'parses to', $result);
|
|
return $result;
|
|
}
|
|
|
|
sub version_ge {
|
|
my ( $self, $dbh, $target ) = @_;
|
|
if ( !$self->{$dbh} ) {
|
|
$self->{$dbh} = $self->parse(
|
|
$dbh->selectrow_array('SELECT VERSION()'));
|
|
}
|
|
my $result = $self->{$dbh} ge $self->parse($target) ? 1 : 0;
|
|
MKDEBUG && _d($self->{$dbh}, 'ge', $target, ':', $result);
|
|
return $result;
|
|
}
|
|
|
|
sub innodb_version {
|
|
my ( $self, $dbh ) = @_;
|
|
return unless $dbh;
|
|
my $innodb_version = "NO";
|
|
|
|
my ($innodb) =
|
|
grep { $_->{engine} =~ m/InnoDB/i }
|
|
map {
|
|
my %hash;
|
|
@hash{ map { lc $_ } keys %$_ } = values %$_;
|
|
\%hash;
|
|
}
|
|
@{ $dbh->selectall_arrayref("SHOW ENGINES", {Slice=>{}}) };
|
|
if ( $innodb ) {
|
|
MKDEBUG && _d("InnoDB support:", $innodb->{support});
|
|
if ( $innodb->{support} =~ m/YES|DEFAULT/i ) {
|
|
my $vars = $dbh->selectrow_hashref(
|
|
"SHOW VARIABLES LIKE 'innodb_version'");
|
|
$innodb_version = !$vars ? "BUILTIN"
|
|
: ($vars->{Value} || $vars->{value});
|
|
}
|
|
else {
|
|
$innodb_version = $innodb->{support}; # probably DISABLED or NO
|
|
}
|
|
}
|
|
|
|
MKDEBUG && _d("InnoDB version:", $innodb_version);
|
|
return $innodb_version;
|
|
}
|
|
|
|
sub _d {
|
|
my ($package, undef, $line) = caller 0;
|
|
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
|
|
map { defined $_ ? $_ : 'undef' }
|
|
@_;
|
|
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
|
|
}
|
|
|
|
1;
|
|
}
|
|
# ###########################################################################
|
|
# End VersionParser package
|
|
# ###########################################################################
|
|
|
|
# ###########################################################################
|
|
# TableParser package
|
|
# This package is a copy without comments from the original. The original
|
|
# with comments and its test file can be found in the Bazaar repository at,
|
|
# lib/TableParser.pm
|
|
# t/lib/TableParser.t
|
|
# See https://launchpad.net/percona-toolkit for more information.
|
|
# ###########################################################################
|
|
{
|
|
package TableParser;
|
|
|
|
use strict;
|
|
use warnings FATAL => 'all';
|
|
use English qw(-no_match_vars);
|
|
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
|
|
|
|
use Data::Dumper;
|
|
$Data::Dumper::Indent = 1;
|
|
$Data::Dumper::Sortkeys = 1;
|
|
$Data::Dumper::Quotekeys = 0;
|
|
|
|
sub new {
|
|
my ( $class, %args ) = @_;
|
|
my @required_args = qw(Quoter);
|
|
foreach my $arg ( @required_args ) {
|
|
die "I need a $arg argument" unless $args{$arg};
|
|
}
|
|
my $self = { %args };
|
|
return bless $self, $class;
|
|
}
|
|
|
|
sub parse {
|
|
my ( $self, $ddl, $opts ) = @_;
|
|
return unless $ddl;
|
|
if ( ref $ddl eq 'ARRAY' ) {
|
|
if ( lc $ddl->[0] eq 'table' ) {
|
|
$ddl = $ddl->[1];
|
|
}
|
|
else {
|
|
return {
|
|
engine => 'VIEW',
|
|
};
|
|
}
|
|
}
|
|
|
|
if ( $ddl !~ m/CREATE (?:TEMPORARY )?TABLE `/ ) {
|
|
die "Cannot parse table definition; is ANSI quoting "
|
|
. "enabled or SQL_QUOTE_SHOW_CREATE disabled?";
|
|
}
|
|
|
|
my ($name) = $ddl =~ m/CREATE (?:TEMPORARY )?TABLE\s+(`.+?`)/;
|
|
(undef, $name) = $self->{Quoter}->split_unquote($name) if $name;
|
|
|
|
$ddl =~ s/(`[^`]+`)/\L$1/g;
|
|
|
|
my $engine = $self->get_engine($ddl);
|
|
|
|
my @defs = $ddl =~ m/^(\s+`.*?),?$/gm;
|
|
my @cols = map { $_ =~ m/`([^`]+)`/ } @defs;
|
|
MKDEBUG && _d('Table cols:', join(', ', map { "`$_`" } @cols));
|
|
|
|
my %def_for;
|
|
@def_for{@cols} = @defs;
|
|
|
|
my (@nums, @null);
|
|
my (%type_for, %is_nullable, %is_numeric, %is_autoinc);
|
|
foreach my $col ( @cols ) {
|
|
my $def = $def_for{$col};
|
|
my ( $type ) = $def =~ m/`[^`]+`\s([a-z]+)/;
|
|
die "Can't determine column type for $def" unless $type;
|
|
$type_for{$col} = $type;
|
|
if ( $type =~ m/(?:(?:tiny|big|medium|small)?int|float|double|decimal|year)/ ) {
|
|
push @nums, $col;
|
|
$is_numeric{$col} = 1;
|
|
}
|
|
if ( $def !~ m/NOT NULL/ ) {
|
|
push @null, $col;
|
|
$is_nullable{$col} = 1;
|
|
}
|
|
$is_autoinc{$col} = $def =~ m/AUTO_INCREMENT/i ? 1 : 0;
|
|
}
|
|
|
|
my ($keys, $clustered_key) = $self->get_keys($ddl, $opts, \%is_nullable);
|
|
|
|
my ($charset) = $ddl =~ m/DEFAULT CHARSET=(\w+)/;
|
|
|
|
return {
|
|
name => $name,
|
|
cols => \@cols,
|
|
col_posn => { map { $cols[$_] => $_ } 0..$#cols },
|
|
is_col => { map { $_ => 1 } @cols },
|
|
null_cols => \@null,
|
|
is_nullable => \%is_nullable,
|
|
is_autoinc => \%is_autoinc,
|
|
clustered_key => $clustered_key,
|
|
keys => $keys,
|
|
defs => \%def_for,
|
|
numeric_cols => \@nums,
|
|
is_numeric => \%is_numeric,
|
|
engine => $engine,
|
|
type_for => \%type_for,
|
|
charset => $charset,
|
|
};
|
|
}
|
|
|
|
sub sort_indexes {
|
|
my ( $self, $tbl ) = @_;
|
|
|
|
my @indexes
|
|
= sort {
|
|
(($a ne 'PRIMARY') <=> ($b ne 'PRIMARY'))
|
|
|| ( !$tbl->{keys}->{$a}->{is_unique} <=> !$tbl->{keys}->{$b}->{is_unique} )
|
|
|| ( $tbl->{keys}->{$a}->{is_nullable} <=> $tbl->{keys}->{$b}->{is_nullable} )
|
|
|| ( scalar(@{$tbl->{keys}->{$a}->{cols}}) <=> scalar(@{$tbl->{keys}->{$b}->{cols}}) )
|
|
}
|
|
grep {
|
|
$tbl->{keys}->{$_}->{type} eq 'BTREE'
|
|
}
|
|
sort keys %{$tbl->{keys}};
|
|
|
|
MKDEBUG && _d('Indexes sorted best-first:', join(', ', @indexes));
|
|
return @indexes;
|
|
}
|
|
|
|
sub find_best_index {
|
|
my ( $self, $tbl, $index ) = @_;
|
|
my $best;
|
|
if ( $index ) {
|
|
($best) = grep { uc $_ eq uc $index } keys %{$tbl->{keys}};
|
|
}
|
|
if ( !$best ) {
|
|
if ( $index ) {
|
|
die "Index '$index' does not exist in table";
|
|
}
|
|
else {
|
|
($best) = $self->sort_indexes($tbl);
|
|
}
|
|
}
|
|
MKDEBUG && _d('Best index found is', $best);
|
|
return $best;
|
|
}
|
|
|
|
sub find_possible_keys {
|
|
my ( $self, $dbh, $database, $table, $quoter, $where ) = @_;
|
|
return () unless $where;
|
|
my $sql = 'EXPLAIN SELECT * FROM ' . $quoter->quote($database, $table)
|
|
. ' WHERE ' . $where;
|
|
MKDEBUG && _d($sql);
|
|
my $expl = $dbh->selectrow_hashref($sql);
|
|
$expl = { map { lc($_) => $expl->{$_} } keys %$expl };
|
|
if ( $expl->{possible_keys} ) {
|
|
MKDEBUG && _d('possible_keys =', $expl->{possible_keys});
|
|
my @candidates = split(',', $expl->{possible_keys});
|
|
my %possible = map { $_ => 1 } @candidates;
|
|
if ( $expl->{key} ) {
|
|
MKDEBUG && _d('MySQL chose', $expl->{key});
|
|
unshift @candidates, grep { $possible{$_} } split(',', $expl->{key});
|
|
MKDEBUG && _d('Before deduping:', join(', ', @candidates));
|
|
my %seen;
|
|
@candidates = grep { !$seen{$_}++ } @candidates;
|
|
}
|
|
MKDEBUG && _d('Final list:', join(', ', @candidates));
|
|
return @candidates;
|
|
}
|
|
else {
|
|
MKDEBUG && _d('No keys in possible_keys');
|
|
return ();
|
|
}
|
|
}
|
|
|
|
sub check_table {
|
|
my ( $self, %args ) = @_;
|
|
my @required_args = qw(dbh db tbl);
|
|
foreach my $arg ( @required_args ) {
|
|
die "I need a $arg argument" unless $args{$arg};
|
|
}
|
|
my ($dbh, $db, $tbl) = @args{@required_args};
|
|
my $q = $self->{Quoter};
|
|
my $db_tbl = $q->quote($db, $tbl);
|
|
MKDEBUG && _d('Checking', $db_tbl);
|
|
|
|
my $sql = "SHOW TABLES FROM " . $q->quote($db)
|
|
. ' LIKE ' . $q->literal_like($tbl);
|
|
MKDEBUG && _d($sql);
|
|
my $row;
|
|
eval {
|
|
$row = $dbh->selectrow_arrayref($sql);
|
|
};
|
|
if ( $EVAL_ERROR ) {
|
|
MKDEBUG && _d($EVAL_ERROR);
|
|
return 0;
|
|
}
|
|
if ( !$row->[0] || $row->[0] ne $tbl ) {
|
|
MKDEBUG && _d('Table does not exist');
|
|
return 0;
|
|
}
|
|
|
|
MKDEBUG && _d('Table exists; no privs to check');
|
|
return 1 unless $args{all_privs};
|
|
|
|
$sql = "SHOW FULL COLUMNS FROM $db_tbl";
|
|
MKDEBUG && _d($sql);
|
|
eval {
|
|
$row = $dbh->selectrow_hashref($sql);
|
|
};
|
|
if ( $EVAL_ERROR ) {
|
|
MKDEBUG && _d($EVAL_ERROR);
|
|
return 0;
|
|
}
|
|
if ( !scalar keys %$row ) {
|
|
MKDEBUG && _d('Table has no columns:', Dumper($row));
|
|
return 0;
|
|
}
|
|
my $privs = $row->{privileges} || $row->{Privileges};
|
|
|
|
$sql = "DELETE FROM $db_tbl LIMIT 0";
|
|
MKDEBUG && _d($sql);
|
|
eval {
|
|
$dbh->do($sql);
|
|
};
|
|
my $can_delete = $EVAL_ERROR ? 0 : 1;
|
|
|
|
MKDEBUG && _d('User privs on', $db_tbl, ':', $privs,
|
|
($can_delete ? 'delete' : ''));
|
|
|
|
if ( !($privs =~ m/select/ && $privs =~ m/insert/ && $privs =~ m/update/
|
|
&& $can_delete) ) {
|
|
MKDEBUG && _d('User does not have all privs');
|
|
return 0;
|
|
}
|
|
|
|
MKDEBUG && _d('User has all privs');
|
|
return 1;
|
|
}
|
|
|
|
sub get_engine {
|
|
my ( $self, $ddl, $opts ) = @_;
|
|
my ( $engine ) = $ddl =~ m/\).*?(?:ENGINE|TYPE)=(\w+)/;
|
|
MKDEBUG && _d('Storage engine:', $engine);
|
|
return $engine || undef;
|
|
}
|
|
|
|
sub get_keys {
|
|
my ( $self, $ddl, $opts, $is_nullable ) = @_;
|
|
my $engine = $self->get_engine($ddl);
|
|
my $keys = {};
|
|
my $clustered_key = undef;
|
|
|
|
KEY:
|
|
foreach my $key ( $ddl =~ m/^ ((?:[A-Z]+ )?KEY .*)$/gm ) {
|
|
|
|
next KEY if $key =~ m/FOREIGN/;
|
|
|
|
my $key_ddl = $key;
|
|
MKDEBUG && _d('Parsed key:', $key_ddl);
|
|
|
|
if ( $engine !~ m/MEMORY|HEAP/ ) {
|
|
$key =~ s/USING HASH/USING BTREE/;
|
|
}
|
|
|
|
my ( $type, $cols ) = $key =~ m/(?:USING (\w+))? \((.+)\)/;
|
|
my ( $special ) = $key =~ m/(FULLTEXT|SPATIAL)/;
|
|
$type = $type || $special || 'BTREE';
|
|
if ( $opts->{mysql_version} && $opts->{mysql_version} lt '004001000'
|
|
&& $engine =~ m/HEAP|MEMORY/i )
|
|
{
|
|
$type = 'HASH'; # MySQL pre-4.1 supports only HASH indexes on HEAP
|
|
}
|
|
|
|
my ($name) = $key =~ m/(PRIMARY|`[^`]*`)/;
|
|
my $unique = $key =~ m/PRIMARY|UNIQUE/ ? 1 : 0;
|
|
my @cols;
|
|
my @col_prefixes;
|
|
foreach my $col_def ( $cols =~ m/`[^`]+`(?:\(\d+\))?/g ) {
|
|
my ($name, $prefix) = $col_def =~ m/`([^`]+)`(?:\((\d+)\))?/;
|
|
push @cols, $name;
|
|
push @col_prefixes, $prefix;
|
|
}
|
|
$name =~ s/`//g;
|
|
|
|
MKDEBUG && _d( $name, 'key cols:', join(', ', map { "`$_`" } @cols));
|
|
|
|
$keys->{$name} = {
|
|
name => $name,
|
|
type => $type,
|
|
colnames => $cols,
|
|
cols => \@cols,
|
|
col_prefixes => \@col_prefixes,
|
|
is_unique => $unique,
|
|
is_nullable => scalar(grep { $is_nullable->{$_} } @cols),
|
|
is_col => { map { $_ => 1 } @cols },
|
|
ddl => $key_ddl,
|
|
};
|
|
|
|
if ( $engine =~ m/InnoDB/i && !$clustered_key ) {
|
|
my $this_key = $keys->{$name};
|
|
if ( $this_key->{name} eq 'PRIMARY' ) {
|
|
$clustered_key = 'PRIMARY';
|
|
}
|
|
elsif ( $this_key->{is_unique} && !$this_key->{is_nullable} ) {
|
|
$clustered_key = $this_key->{name};
|
|
}
|
|
MKDEBUG && $clustered_key && _d('This key is the clustered key');
|
|
}
|
|
}
|
|
|
|
return $keys, $clustered_key;
|
|
}
|
|
|
|
sub get_fks {
|
|
my ( $self, $ddl, $opts ) = @_;
|
|
my $q = $self->{Quoter};
|
|
my $fks = {};
|
|
|
|
foreach my $fk (
|
|
$ddl =~ m/CONSTRAINT .* FOREIGN KEY .* REFERENCES [^\)]*\)/mg )
|
|
{
|
|
my ( $name ) = $fk =~ m/CONSTRAINT `(.*?)`/;
|
|
my ( $cols ) = $fk =~ m/FOREIGN KEY \(([^\)]+)\)/;
|
|
my ( $parent, $parent_cols ) = $fk =~ m/REFERENCES (\S+) \(([^\)]+)\)/;
|
|
|
|
my ($db, $tbl) = $q->split_unquote($parent, $opts->{database});
|
|
my %parent_tbl = (tbl => $tbl);
|
|
$parent_tbl{db} = $db if $db;
|
|
|
|
if ( $parent !~ m/\./ && $opts->{database} ) {
|
|
$parent = $q->quote($opts->{database}) . ".$parent";
|
|
}
|
|
|
|
$fks->{$name} = {
|
|
name => $name,
|
|
colnames => $cols,
|
|
cols => [ map { s/[ `]+//g; $_; } split(',', $cols) ],
|
|
parent_tbl => \%parent_tbl,
|
|
parent_tblname => $parent,
|
|
parent_cols => [ map { s/[ `]+//g; $_; } split(',', $parent_cols) ],
|
|
parent_colnames=> $parent_cols,
|
|
ddl => $fk,
|
|
};
|
|
}
|
|
|
|
return $fks;
|
|
}
|
|
|
|
sub remove_auto_increment {
|
|
my ( $self, $ddl ) = @_;
|
|
$ddl =~ s/(^\).*?) AUTO_INCREMENT=\d+\b/$1/m;
|
|
return $ddl;
|
|
}
|
|
|
|
sub remove_secondary_indexes {
|
|
my ( $self, $ddl ) = @_;
|
|
my $sec_indexes_ddl;
|
|
my $tbl_struct = $self->parse($ddl);
|
|
|
|
if ( ($tbl_struct->{engine} || '') =~ m/InnoDB/i ) {
|
|
my $clustered_key = $tbl_struct->{clustered_key};
|
|
$clustered_key ||= '';
|
|
|
|
my @sec_indexes = map {
|
|
my $key_def = $_->{ddl};
|
|
$key_def =~ s/([\(\)])/\\$1/g;
|
|
$ddl =~ s/\s+$key_def//i;
|
|
|
|
my $key_ddl = "ADD $_->{ddl}";
|
|
$key_ddl .= ',' unless $key_ddl =~ m/,$/;
|
|
$key_ddl;
|
|
}
|
|
grep { $_->{name} ne $clustered_key }
|
|
values %{$tbl_struct->{keys}};
|
|
MKDEBUG && _d('Secondary indexes:', Dumper(\@sec_indexes));
|
|
|
|
if ( @sec_indexes ) {
|
|
$sec_indexes_ddl = join(' ', @sec_indexes);
|
|
$sec_indexes_ddl =~ s/,$//;
|
|
}
|
|
|
|
$ddl =~ s/,(\n\) )/$1/s;
|
|
}
|
|
else {
|
|
MKDEBUG && _d('Not removing secondary indexes from',
|
|
$tbl_struct->{engine}, 'table');
|
|
}
|
|
|
|
return $ddl, $sec_indexes_ddl, $tbl_struct;
|
|
}
|
|
|
|
sub _d {
|
|
my ($package, undef, $line) = caller 0;
|
|
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
|
|
map { defined $_ ? $_ : 'undef' }
|
|
@_;
|
|
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
|
|
}
|
|
|
|
1;
|
|
}
|
|
# ###########################################################################
|
|
# End TableParser package
|
|
# ###########################################################################
|
|
|
|
# ###########################################################################
|
|
# Transformers package
|
|
# This package is a copy without comments from the original. The original
|
|
# with comments and its test file can be found in the Bazaar repository at,
|
|
# lib/Transformers.pm
|
|
# t/lib/Transformers.t
|
|
# See https://launchpad.net/percona-toolkit for more information.
|
|
# ###########################################################################
|
|
{
|
|
package Transformers;
|
|
|
|
use strict;
|
|
use warnings FATAL => 'all';
|
|
use English qw(-no_match_vars);
|
|
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
|
|
|
|
use Time::Local qw(timegm timelocal);
|
|
use Digest::MD5 qw(md5_hex);
|
|
|
|
require Exporter;
|
|
our @ISA = qw(Exporter);
|
|
our %EXPORT_TAGS = ();
|
|
our @EXPORT = ();
|
|
our @EXPORT_OK = qw(
|
|
micro_t
|
|
percentage_of
|
|
secs_to_time
|
|
time_to_secs
|
|
shorten
|
|
ts
|
|
parse_timestamp
|
|
unix_timestamp
|
|
any_unix_timestamp
|
|
make_checksum
|
|
crc32
|
|
);
|
|
|
|
our $mysql_ts = qr/(\d\d)(\d\d)(\d\d) +(\d+):(\d+):(\d+)(\.\d+)?/;
|
|
our $proper_ts = qr/(\d\d\d\d)-(\d\d)-(\d\d)[T ](\d\d):(\d\d):(\d\d)(\.\d+)?/;
|
|
our $n_ts = qr/(\d{1,5})([shmd]?)/; # Limit \d{1,5} because \d{6} looks
|
|
|
|
sub micro_t {
|
|
my ( $t, %args ) = @_;
|
|
my $p_ms = defined $args{p_ms} ? $args{p_ms} : 0; # precision for ms vals
|
|
my $p_s = defined $args{p_s} ? $args{p_s} : 0; # precision for s vals
|
|
my $f;
|
|
|
|
$t = 0 if $t < 0;
|
|
|
|
$t = sprintf('%.17f', $t) if $t =~ /e/;
|
|
|
|
$t =~ s/\.(\d{1,6})\d*/\.$1/;
|
|
|
|
if ($t > 0 && $t <= 0.000999) {
|
|
$f = ($t * 1000000) . 'us';
|
|
}
|
|
elsif ($t >= 0.001000 && $t <= 0.999999) {
|
|
$f = sprintf("%.${p_ms}f", $t * 1000);
|
|
$f = ($f * 1) . 'ms'; # * 1 to remove insignificant zeros
|
|
}
|
|
elsif ($t >= 1) {
|
|
$f = sprintf("%.${p_s}f", $t);
|
|
$f = ($f * 1) . 's'; # * 1 to remove insignificant zeros
|
|
}
|
|
else {
|
|
$f = 0; # $t should = 0 at this point
|
|
}
|
|
|
|
return $f;
|
|
}
|
|
|
|
sub percentage_of {
|
|
my ( $is, $of, %args ) = @_;
|
|
my $p = $args{p} || 0; # float precision
|
|
my $fmt = $p ? "%.${p}f" : "%d";
|
|
return sprintf $fmt, ($is * 100) / ($of ||= 1);
|
|
}
|
|
|
|
sub secs_to_time {
|
|
my ( $secs, $fmt ) = @_;
|
|
$secs ||= 0;
|
|
return '00:00' unless $secs;
|
|
|
|
$fmt ||= $secs >= 86_400 ? 'd'
|
|
: $secs >= 3_600 ? 'h'
|
|
: 'm';
|
|
|
|
return
|
|
$fmt eq 'd' ? sprintf(
|
|
"%d+%02d:%02d:%02d",
|
|
int($secs / 86_400),
|
|
int(($secs % 86_400) / 3_600),
|
|
int(($secs % 3_600) / 60),
|
|
$secs % 60)
|
|
: $fmt eq 'h' ? sprintf(
|
|
"%02d:%02d:%02d",
|
|
int(($secs % 86_400) / 3_600),
|
|
int(($secs % 3_600) / 60),
|
|
$secs % 60)
|
|
: sprintf(
|
|
"%02d:%02d",
|
|
int(($secs % 3_600) / 60),
|
|
$secs % 60);
|
|
}
|
|
|
|
sub time_to_secs {
|
|
my ( $val, $default_suffix ) = @_;
|
|
die "I need a val argument" unless defined $val;
|
|
my $t = 0;
|
|
my ( $prefix, $num, $suffix ) = $val =~ m/([+-]?)(\d+)([a-z])?$/;
|
|
$suffix = $suffix || $default_suffix || 's';
|
|
if ( $suffix =~ m/[smhd]/ ) {
|
|
$t = $suffix eq 's' ? $num * 1 # Seconds
|
|
: $suffix eq 'm' ? $num * 60 # Minutes
|
|
: $suffix eq 'h' ? $num * 3600 # Hours
|
|
: $num * 86400; # Days
|
|
|
|
$t *= -1 if $prefix && $prefix eq '-';
|
|
}
|
|
else {
|
|
die "Invalid suffix for $val: $suffix";
|
|
}
|
|
return $t;
|
|
}
|
|
|
|
sub shorten {
|
|
my ( $num, %args ) = @_;
|
|
my $p = defined $args{p} ? $args{p} : 2; # float precision
|
|
my $d = defined $args{d} ? $args{d} : 1_024; # divisor
|
|
my $n = 0;
|
|
my @units = ('', qw(k M G T P E Z Y));
|
|
while ( $num >= $d && $n < @units - 1 ) {
|
|
$num /= $d;
|
|
++$n;
|
|
}
|
|
return sprintf(
|
|
$num =~ m/\./ || $n
|
|
? "%.${p}f%s"
|
|
: '%d',
|
|
$num, $units[$n]);
|
|
}
|
|
|
|
sub ts {
|
|
my ( $time, $gmt ) = @_;
|
|
my ( $sec, $min, $hour, $mday, $mon, $year )
|
|
= $gmt ? gmtime($time) : localtime($time);
|
|
$mon += 1;
|
|
$year += 1900;
|
|
my $val = sprintf("%d-%02d-%02dT%02d:%02d:%02d",
|
|
$year, $mon, $mday, $hour, $min, $sec);
|
|
if ( my ($us) = $time =~ m/(\.\d+)$/ ) {
|
|
$us = sprintf("%.6f", $us);
|
|
$us =~ s/^0\././;
|
|
$val .= $us;
|
|
}
|
|
return $val;
|
|
}
|
|
|
|
sub parse_timestamp {
|
|
my ( $val ) = @_;
|
|
if ( my($y, $m, $d, $h, $i, $s, $f)
|
|
= $val =~ m/^$mysql_ts$/ )
|
|
{
|
|
return sprintf "%d-%02d-%02d %02d:%02d:"
|
|
. (defined $f ? '%09.6f' : '%02d'),
|
|
$y + 2000, $m, $d, $h, $i, (defined $f ? $s + $f : $s);
|
|
}
|
|
return $val;
|
|
}
|
|
|
|
sub unix_timestamp {
|
|
my ( $val, $gmt ) = @_;
|
|
if ( my($y, $m, $d, $h, $i, $s, $us) = $val =~ m/^$proper_ts$/ ) {
|
|
$val = $gmt
|
|
? timegm($s, $i, $h, $d, $m - 1, $y)
|
|
: timelocal($s, $i, $h, $d, $m - 1, $y);
|
|
if ( defined $us ) {
|
|
$us = sprintf('%.6f', $us);
|
|
$us =~ s/^0\././;
|
|
$val .= $us;
|
|
}
|
|
}
|
|
return $val;
|
|
}
|
|
|
|
sub any_unix_timestamp {
|
|
my ( $val, $callback ) = @_;
|
|
|
|
if ( my ($n, $suffix) = $val =~ m/^$n_ts$/ ) {
|
|
$n = $suffix eq 's' ? $n # Seconds
|
|
: $suffix eq 'm' ? $n * 60 # Minutes
|
|
: $suffix eq 'h' ? $n * 3600 # Hours
|
|
: $suffix eq 'd' ? $n * 86400 # Days
|
|
: $n; # default: Seconds
|
|
MKDEBUG && _d('ts is now - N[shmd]:', $n);
|
|
return time - $n;
|
|
}
|
|
elsif ( $val =~ m/^\d{9,}/ ) {
|
|
MKDEBUG && _d('ts is already a unix timestamp');
|
|
return $val;
|
|
}
|
|
elsif ( my ($ymd, $hms) = $val =~ m/^(\d{6})(?:\s+(\d+:\d+:\d+))?/ ) {
|
|
MKDEBUG && _d('ts is MySQL slow log timestamp');
|
|
$val .= ' 00:00:00' unless $hms;
|
|
return unix_timestamp(parse_timestamp($val));
|
|
}
|
|
elsif ( ($ymd, $hms) = $val =~ m/^(\d{4}-\d\d-\d\d)(?:[T ](\d+:\d+:\d+))?/) {
|
|
MKDEBUG && _d('ts is properly formatted timestamp');
|
|
$val .= ' 00:00:00' unless $hms;
|
|
return unix_timestamp($val);
|
|
}
|
|
else {
|
|
MKDEBUG && _d('ts is MySQL expression');
|
|
return $callback->($val) if $callback && ref $callback eq 'CODE';
|
|
}
|
|
|
|
MKDEBUG && _d('Unknown ts type:', $val);
|
|
return;
|
|
}
|
|
|
|
sub make_checksum {
|
|
my ( $val ) = @_;
|
|
my $checksum = uc substr(md5_hex($val), -16);
|
|
MKDEBUG && _d($checksum, 'checksum for', $val);
|
|
return $checksum;
|
|
}
|
|
|
|
sub crc32 {
|
|
my ( $string ) = @_;
|
|
return unless $string;
|
|
my $poly = 0xEDB88320;
|
|
my $crc = 0xFFFFFFFF;
|
|
foreach my $char ( split(//, $string) ) {
|
|
my $comp = ($crc ^ ord($char)) & 0xFF;
|
|
for ( 1 .. 8 ) {
|
|
$comp = $comp & 1 ? $poly ^ ($comp >> 1) : $comp >> 1;
|
|
}
|
|
$crc = (($crc >> 8) & 0x00FFFFFF) ^ $comp;
|
|
}
|
|
return $crc ^ 0xFFFFFFFF;
|
|
}
|
|
|
|
sub _d {
|
|
my ($package, undef, $line) = caller 0;
|
|
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
|
|
map { defined $_ ? $_ : 'undef' }
|
|
@_;
|
|
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
|
|
}
|
|
|
|
1;
|
|
}
|
|
# ###########################################################################
|
|
# End Transformers package
|
|
# ###########################################################################
|
|
|
|
# ###########################################################################
|
|
# This is a combination of modules and programs in one -- a runnable module.
|
|
# http://www.perl.com/pub/a/2006/07/13/lightning-articles.html?page=last
|
|
# Or, look it up in the Camel book on pages 642 and 643 in the 3rd edition.
|
|
#
|
|
# Check at the end of this package for the call to main() which actually runs
|
|
# the program.
|
|
# ###########################################################################
|
|
package pt_heartbeat;
|
|
|
|
use English qw(-no_match_vars);
|
|
use List::Util qw(min max sum);
|
|
use Time::HiRes qw(gettimeofday time sleep usleep);
|
|
use IO::File;
|
|
|
|
use constant MKDEBUG => $ENV{MKDEBUG} || 0;
|
|
|
|
Transformers->import qw(ts unix_timestamp);
|
|
|
|
my @dbhs; # Holds slave DBHs if --recurse
|
|
my @sths; # Holds [$host, $sth] if --recurse
|
|
|
|
sub main {
|
|
@ARGV = @_; # set global ARGV for this package
|
|
|
|
# Reset all global vars between test runs else weird things happen.
|
|
@dbhs = ();
|
|
@sths = ();
|
|
|
|
# ########################################################################
|
|
# Get configuration information.
|
|
# ########################################################################
|
|
my $o = new OptionParser();
|
|
$o->get_specs();
|
|
$o->get_opts();
|
|
|
|
my $dp = $o->DSNParser;
|
|
$dp->prop('dbidriver', $o->get('dbi-driver'));
|
|
$dp->prop('set-vars', $o->get('set-vars'));
|
|
|
|
if ( !$o->get('help') ) {
|
|
my @frames = $o->get('frames') =~ m/(\d+[smhd])/g;
|
|
if ( @frames ) {
|
|
my @times;
|
|
foreach my $frame ( @frames ) {
|
|
my ($num, $suf) = $frame =~ m/(\d+)([smhd])$/;
|
|
if ( !$num ) {
|
|
$o->save_error("Invalid --frames argument");
|
|
}
|
|
else {
|
|
push @times,
|
|
$suf eq 's' ? $num # Seconds
|
|
: $suf eq 'm' ? $num * 60 # Minutes
|
|
: $suf eq 'h' ? $num * 3600 # Hours
|
|
: $num * 86400; # Days
|
|
}
|
|
}
|
|
$o->set('frames', \@times);
|
|
}
|
|
else {
|
|
$o->save_error("Invalid --frames argument");
|
|
}
|
|
|
|
if ( $o->get('create-table')
|
|
&& !($o->get('database') && $o->get('table'))) {
|
|
$o->save_error('--create-table requires both --database and --table');
|
|
}
|
|
|
|
if ( $o->get('interval') < 0.01 ) {
|
|
$o->save_error("--interval must be >= 0.01");
|
|
}
|
|
|
|
if ( !$o->get('stop') && !$o->get('database') ) {
|
|
$o->save_error('--database must be specified');
|
|
}
|
|
}
|
|
|
|
$o->usage_or_errors();
|
|
|
|
# ########################################################################
|
|
# Make common modules and var for frequently used options.
|
|
# ########################################################################
|
|
my $q = new Quoter();
|
|
my $tp = new TableParser(Quoter => $q);
|
|
|
|
my $interval = $o->get('interval');
|
|
my $skew = $o->get('update') ? 0 : $o->get('skew');
|
|
my $sentinel = $o->get('sentinel');
|
|
my $frames = $o->get('frames');
|
|
my $db = $o->get('database');
|
|
my $tbl = $o->get('table');
|
|
|
|
# ########################################################################
|
|
# Create --sentinel file if --stop was given, and possibly exit.
|
|
# ########################################################################
|
|
if ( $o->get('stop') ) {
|
|
MKDEBUG && _d('Creating sentinel file', $sentinel);
|
|
my $file = IO::File->new($sentinel, ">>")
|
|
or die "Cannot open $sentinel: $OS_ERROR\n";
|
|
print $file "Remove this file to permit pt-heartbeat to run\n"
|
|
or die "Cannot write to $sentinel: $OS_ERROR\n";
|
|
close $file
|
|
or die "Cannot close $sentinel: $OS_ERROR\n";
|
|
print STDOUT "Successfully created file $sentinel\n";
|
|
# Exit only if no other action (update, monitor, check) is given.
|
|
if ( !$o->get('update') && !$o->get('check') && !$o->get('monitor') ) {
|
|
MKDEBUG && _d("Nothing more to do, quitting");
|
|
return 0;
|
|
}
|
|
else {
|
|
# Wait for all other running instances to quit, assuming they have the
|
|
# same --interval as this invocation. Then remove the file and
|
|
# continue.
|
|
MKDEBUG && _d("Waiting for other instances to quit");
|
|
sleep $interval ;
|
|
MKDEBUG && _d("Unlinking", $sentinel);
|
|
unlink $sentinel
|
|
or die "Cannot unlink $sentinel: $OS_ERROR";
|
|
}
|
|
}
|
|
|
|
# ########################################################################
|
|
# Connect to MySQL.
|
|
# ########################################################################
|
|
if ( $o->get('ask-pass') ) {
|
|
$o->set('password', OptionParser::prompt_noecho("Enter password: "));
|
|
}
|
|
my $dsn_defaults = $dp->parse_options($o);
|
|
my $dsn = @ARGV ? $dp->parse(shift @ARGV, $dsn_defaults)
|
|
: $dsn_defaults;
|
|
my $dbh = $dp->get_dbh($dp->get_cxn_params($dsn), {AutoCommit=>1});
|
|
|
|
$dbh->{InactiveDestroy} = 1; # Don't disconnect on fork
|
|
$dbh->{FetchHashKeyName} = 'NAME_lc';
|
|
$dbh->do("USE `$db`");
|
|
|
|
# ########################################################################
|
|
# Create the heartbeat table if --create-table was given.
|
|
# ########################################################################
|
|
my $db_tbl = $q->quote($db, $tbl);
|
|
my $server_id = $dbh->selectrow_array('SELECT @@server_id');
|
|
if ( $o->get('create-table') ) {
|
|
my $sql = $o->read_para_after(__FILE__, qr/MAGIC_create_heartbeat/);
|
|
$sql =~ s/heartbeat/IF NOT EXISTS $db_tbl/;
|
|
MKDEBUG && _d($sql);
|
|
$dbh->do($sql);
|
|
|
|
$sql = "INSERT INTO $db_tbl (ts, server_id) VALUES (NOW(), $server_id)";
|
|
MKDEBUG && _d($sql);
|
|
# This may fail if the table already existed and already had this row.
|
|
# We eval to ignore this possibility.
|
|
eval { $dbh->do($sql); };
|
|
}
|
|
|
|
# ########################################################################
|
|
# Get and check heartbeat table structure.
|
|
# ########################################################################
|
|
my $tbl_def = $dbh->selectrow_arrayref("SHOW CREATE TABLE $db_tbl");
|
|
my $tbl_struct = $tp->parse($tbl_def->[1]);
|
|
|
|
die "Heartbeat table $db_tbl does not have a ts column"
|
|
unless $tbl_struct->{is_col}->{ts};
|
|
|
|
my $hires_ts = $tbl_struct->{type_for}->{ts} =~ m/char/i ? 1 : 0;
|
|
MKDEBUG && _d("Hi-res ts:", ($hires_ts ? 'yes' : 'no'));
|
|
|
|
my $id = $tbl_struct->{is_col}->{id}; # legacy table struct
|
|
die "Heartbeat table $db_tbl does not have a server_id or id column"
|
|
unless $tbl_struct->{is_col}->{server_id} || $id;
|
|
|
|
# If there's an id column, then we're running in legacy mode. If there's
|
|
# a server_id column, then we're running in the new mode which supports
|
|
# multiple --update instances.
|
|
if ( $tbl_struct->{is_col}->{id} && $tbl_struct->{is_col}->{server_id} ) {
|
|
die "Heartbeat table $db_tbl cannot have both an id column and "
|
|
. "a server_id column";
|
|
}
|
|
|
|
# pk_col and pk_val are used to identify the heartbeat row to update or
|
|
# or monitor.
|
|
my ($pk_col, $pk_val);
|
|
if ( $id ) {
|
|
# Legacy mode: update heartbeat row WHERE id=1 and monitor heartbeat
|
|
# row WHERE id=1.
|
|
$pk_col = 'id';
|
|
$pk_val = '1';
|
|
}
|
|
elsif ( $tbl_struct->{is_col}->{server_id} ) {
|
|
# Multi-update mode: update heartbeat row WHERE server_id=@@server_id
|
|
# and monitor heartbeat row WHERE server_id=master_server_id.
|
|
if ( $o->get('update') ) {
|
|
$pk_col = 'server_id';
|
|
$pk_val = $server_id;
|
|
}
|
|
else { # monitor or check
|
|
my $master_server_id = $o->get('master-server-id');
|
|
if ( !$master_server_id ) {
|
|
eval {
|
|
my $vp = new VersionParser();
|
|
my $ms = new MasterSlave(VersionParser => $vp);
|
|
my $master_dsn = $ms->get_master_dsn($dbh, $dsn, $dp)
|
|
or die "This server is not a slave";
|
|
my $master_dbh = $dp->get_dbh($dp->get_cxn_params($master_dsn),
|
|
{ AutoCommit => 1 });
|
|
($master_server_id)
|
|
= $master_dbh->selectrow_array('SELECT @@server_id');
|
|
$master_dbh->disconnect;
|
|
};
|
|
if ( $EVAL_ERROR ) {
|
|
MKDEBUG && _d("Error determining master id:", $EVAL_ERROR);
|
|
}
|
|
}
|
|
if ( !$master_server_id ) {
|
|
die "The --master-server-id option must be specified because "
|
|
. "the heartbeat table $db_tbl uses the server_id column "
|
|
. "for --update or --check but the server's master could "
|
|
. "not be automatically determined.\n"
|
|
. "Please read the DESCRIPTION section of the pt-heartbeat POD.\n";
|
|
}
|
|
$pk_col = 'server_id';
|
|
$pk_val = $master_server_id;
|
|
}
|
|
}
|
|
else {
|
|
die "Heartbeat table $db_tbl does not have a server_id or id column";
|
|
}
|
|
MKDEBUG && _d('Heartbeat row primary key:', $pk_col, '=', $pk_val);
|
|
|
|
# Check that heartbeat table has at least 1 row unless --replace because
|
|
# --replace will create the row if it doesn't exist.
|
|
if ( !$o->get('replace') ) {
|
|
my $sql = "SELECT 1 FROM $db_tbl WHERE $pk_col='$pk_val' LIMIT 1";
|
|
MKDEBUG && _d($sql);
|
|
my $row = $dbh->selectall_arrayref($sql);
|
|
if ( scalar @$row == 0 ) {
|
|
MKDEBUG && _d('No heartbeat row in table');
|
|
if ( $o->get('insert-heartbeat-row') ) {
|
|
my $sql = "INSERT INTO $db_tbl ($pk_col, ts) "
|
|
. "VALUES ('$pk_val', NOW())";
|
|
MKDEBUG && _d($sql);
|
|
$dbh->do($sql);
|
|
}
|
|
else {
|
|
if ( $id ) {
|
|
die "The heartbeat table is empty.\n"
|
|
. "At least one row must be inserted into the heartbeat "
|
|
. "table.\nPlease read the DESCRIPTION section of the "
|
|
. "pt-heartbeat POD.\n";
|
|
}
|
|
else {
|
|
die "No row found in heartbeat table for server_id $pk_val.\n"
|
|
. "At least one row must be inserted into the heartbeat "
|
|
. "table for server_id $pk_val.\nPlease read the "
|
|
. "DESCRIPTION section of the pt-heartbeat POD.\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# ########################################################################
|
|
# Make sth for updating or checking the heartbeat table.
|
|
# ########################################################################
|
|
my ($heartbeat_sql, $heartbeat_sth);
|
|
my ($get_delay, $update_heartbeat);
|
|
|
|
if ( $o->get('update') ) {
|
|
my @master_status_cols = grep { $tbl_struct->{is_col}->{$_} }
|
|
qw(file position);
|
|
MKDEBUG && _d("Master status columns:", join(', ', @master_status_cols));
|
|
|
|
my @slave_status_cols = grep { $tbl_struct->{is_col}->{$_} }
|
|
qw(relay_master_log_file exec_master_log_pos);
|
|
MKDEBUG && _d("Slave status columns:", join(', ', @slave_status_cols));
|
|
|
|
# Just a shortcut so I don't have to check both arrays when creating
|
|
# SQL statement below.
|
|
my @extra_cols = (@master_status_cols, @slave_status_cols);
|
|
|
|
if ( $o->get('replace') ) {
|
|
$heartbeat_sql
|
|
= "REPLACE INTO $db_tbl (ts, $pk_col"
|
|
. (@extra_cols ? ", " . join(', ', @extra_cols) : '')
|
|
. ") VALUES (?, '$pk_val'"
|
|
. (@extra_cols ? ", " . join(', ', map { '?' } @extra_cols) : '')
|
|
. ")";
|
|
}
|
|
else {
|
|
$heartbeat_sql
|
|
= "UPDATE $db_tbl SET ts=?"
|
|
. (@extra_cols ? ", " . join(', ', map { "$_=?" } @extra_cols) : "")
|
|
. " WHERE $pk_col='$pk_val'";
|
|
}
|
|
MKDEBUG && _d("UPDATE SQL:", $heartbeat_sql);
|
|
|
|
$heartbeat_sth = $dbh->prepare($heartbeat_sql);
|
|
|
|
$update_heartbeat = sub {
|
|
my ($sth) = @_;
|
|
my @vals;
|
|
|
|
my $sql;
|
|
if ( @master_status_cols ) {
|
|
$sql = "SHOW MASTER STATUS";
|
|
MKDEBUG && _d($dbh, $sql);
|
|
my $row = $dbh->selectrow_hashref($sql);
|
|
if ( !$row ) {
|
|
MKDEBUG && _d("No row from", $sql);
|
|
push @vals, map { undef } @master_status_cols;
|
|
}
|
|
else {
|
|
push @vals, map { $row->{$_} } @master_status_cols;
|
|
}
|
|
}
|
|
|
|
if ( @slave_status_cols ) {
|
|
$sql = "SHOW SLAVE STATUS";
|
|
MKDEBUG && _d($dbh, $sql);
|
|
my $row = $dbh->selectrow_hashref($sql);
|
|
if ( !$row ) {
|
|
MKDEBUG && _d("No row from", $sql);
|
|
push @vals, map { undef } @slave_status_cols;
|
|
}
|
|
else {
|
|
push @vals, map { $row->{$_} } @slave_status_cols;
|
|
}
|
|
}
|
|
|
|
$sth->execute(ts(time), @vals);
|
|
MKDEBUG && _d($sth->{Statement});
|
|
$sth->finish();
|
|
|
|
return;
|
|
};
|
|
}
|
|
else { # --monitor or --check
|
|
my $dbi_driver = lc $o->get('dbi-driver');
|
|
|
|
$heartbeat_sql
|
|
= "SELECT ts"
|
|
. ($dbi_driver eq 'mysql' ? '/*!50038, @@hostname AS host*/' : '')
|
|
. ($id ? "" : ", server_id")
|
|
. " FROM $db_tbl "
|
|
. "WHERE $pk_col='$pk_val' "
|
|
. "LIMIT 1";
|
|
MKDEBUG && _d("SELECT SQL:", $heartbeat_sql);
|
|
|
|
$heartbeat_sth = $dbh->prepare($heartbeat_sql);
|
|
|
|
$get_delay = sub {
|
|
my ($sth) = @_;
|
|
$sth->execute();
|
|
MKDEBUG && _d($sth->{Statement});
|
|
my ($ts, $hostname, $server_id) = $sth->fetchrow_array();
|
|
my $now = time;
|
|
MKDEBUG && _d("Heartbeat from server", $server_id, "\n",
|
|
" now:", ts($now), "\n",
|
|
" ts:", $ts, "\n",
|
|
"skew:", $skew);
|
|
my $delay = $now - unix_timestamp($ts) - $skew;
|
|
MKDEBUG && _d('Delay', sprintf('%.6f', $delay), 'on', $hostname);
|
|
|
|
# Because we adjust for skew, if the ts are less than skew seconds
|
|
# apart (i.e. replication is very fast) then delay will be negative.
|
|
# So it's effectively 0 seconds of lag.
|
|
$delay = 0.00 if $delay < 0;
|
|
|
|
$sth->finish();
|
|
return ($delay, $hostname, $pk_val);
|
|
};
|
|
}
|
|
|
|
# Do a little check just to make sure the table is there, so there's one last
|
|
# chance to catch errors before daemonizing.
|
|
if ( $o->get('update') ) {
|
|
$update_heartbeat->($heartbeat_sth);
|
|
}
|
|
else {
|
|
$get_delay->($heartbeat_sth);
|
|
}
|
|
$heartbeat_sth->finish();
|
|
|
|
# ########################################################################
|
|
# Daemonize only after (potentially) asking for passwords for --ask-pass.
|
|
# ########################################################################
|
|
my $daemon;
|
|
if ( $o->get('daemonize') ) {
|
|
$daemon = new Daemon(o=>$o);
|
|
$daemon->daemonize();
|
|
MKDEBUG && _d('I am a daemon now');
|
|
}
|
|
elsif ( $o->get('pid') ) {
|
|
# We're not daemoninzing, it just handles PID stuff.
|
|
$daemon = new Daemon(o=>$o);
|
|
$daemon->make_PID_file();
|
|
}
|
|
|
|
# ########################################################################
|
|
# --check and exit if --check was given.
|
|
# ########################################################################
|
|
if ( $o->get('check') ) {
|
|
MKDEBUG && _d('--check and exit');
|
|
check_delay(
|
|
dsn => $dsn,
|
|
dbh => $dbh,
|
|
sth => $heartbeat_sth,
|
|
sql => $heartbeat_sql,
|
|
get_delay => $get_delay,
|
|
interval => $interval,
|
|
skew => $skew,
|
|
hires_ts => $hires_ts,
|
|
OptionParser => $o,
|
|
DSNParser => $dp,
|
|
);
|
|
disconnect($dbh, $heartbeat_sth);
|
|
return 0;
|
|
}
|
|
|
|
# ########################################################################
|
|
# Setup moving averages for --frames.
|
|
# ########################################################################
|
|
my @samples;
|
|
my $limit = max(@$frames);
|
|
|
|
# 2.00s [ 0.05s, 0.01s, 0.00s ]
|
|
my $format = ($hires_ts ? '%.2f' : '%4d') . "s "
|
|
. "[ " . join(", ", map { "%5.2fs" } @$frames) . " ]"
|
|
. ($o->get('print-master-server-id') ? " %d" : '')
|
|
. "\n";
|
|
|
|
# ########################################################################
|
|
# Monitor or update the heartbeat table.
|
|
# ########################################################################
|
|
my $end = $o->get('run-time') ? int(time + $o->get('run-time')) : 0;
|
|
MKDEBUG && _d($end ? ('Will exit at', ts($end)) : 'Running forever');
|
|
|
|
my $get_next_interval = make_interval_iter($interval, $skew);
|
|
|
|
while ( # Stop if...
|
|
(!$end || int(time) < $end) # runtime exceeded, or
|
|
&& !-f $sentinel # sentinel file created
|
|
) {
|
|
eval {
|
|
my $next_interval = $get_next_interval->();
|
|
if ( time >= $next_interval ) {
|
|
do { $next_interval = $get_next_interval->() }
|
|
until $next_interval > time;
|
|
MKDEBUG && _d("Missed last interval; next interval:",
|
|
ts($next_interval));
|
|
}
|
|
sleep $next_interval - time;
|
|
MKDEBUG && _d('Woke up at', ts(time));
|
|
|
|
# Connect or reconnect if necessary.
|
|
if ( !$dbh->ping() ) {
|
|
$dbh = $dp->get_dbh($dp->get_cxn_params($dsn), { AutoCommit => 1 });
|
|
$dbh->{InactiveDestroy} = 1; # Don't disconnect on fork
|
|
$dbh->{FetchHashKeyName} = 'NAME_lc';
|
|
$dbh->do("USE `$db`");
|
|
|
|
$heartbeat_sth = undef;
|
|
}
|
|
|
|
if ( $o->get('monitor') ) {
|
|
$heartbeat_sth ||= $dbh->prepare($heartbeat_sql);
|
|
my ($delay) = $get_delay->($heartbeat_sth);
|
|
|
|
unshift @samples, $delay;
|
|
pop @samples if @samples > $limit;
|
|
|
|
# Calculate and print results
|
|
my @vals = map {
|
|
my $bound = min($_, scalar(@samples));
|
|
sum(@samples[0 .. $bound-1]) / $_;
|
|
} @$frames;
|
|
|
|
my $output = sprintf $format, $delay, @vals, $pk_val;
|
|
if ( my $file = $o->get('file') ) {
|
|
open my $file, '>', $file
|
|
or die "Can't open $file: $OS_ERROR";
|
|
print $file $output
|
|
or die "Can't print to $file: $OS_ERROR";
|
|
close $file
|
|
or die "Can't close $file: $OS_ERROR";
|
|
}
|
|
else {
|
|
print $output;
|
|
}
|
|
}
|
|
else { # --update mode
|
|
$heartbeat_sth ||= $dbh->prepare($heartbeat_sql);
|
|
$update_heartbeat->($heartbeat_sth);
|
|
}
|
|
};
|
|
if ( $EVAL_ERROR ) {
|
|
my ( $err ) = $EVAL_ERROR =~ m/^(?:DBI|DBD).*failed: (.*?)\s*at \S+ line .*/;
|
|
if ( $err ) {
|
|
warn "$err\n";
|
|
}
|
|
else {
|
|
die $EVAL_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
disconnect($dbh, $heartbeat_sth);
|
|
return 0;
|
|
}
|
|
|
|
# ############################################################################
|
|
# Subroutines.
|
|
# ############################################################################
|
|
|
|
# Check the delay on a single server. Optionally recurse to all its slaves.
|
|
sub check_delay {
|
|
my ( %args ) = @_;
|
|
my @required_args = qw(dsn dbh sth sql get_delay interval skew OptionParser DSNParser);
|
|
foreach my $arg ( @required_args ) {
|
|
die "I need a $arg argument" unless $args{$arg};
|
|
}
|
|
my ($dsn, $dbh, $sth, $sql, $get_delay, $interval, $skew, $o, $dp)
|
|
= @args{@required_args};
|
|
MKDEBUG && _d('Checking slave delay');
|
|
|
|
# Collect a list of connections to the slaves.
|
|
if ( $o->get('recurse') ) {
|
|
MKDEBUG && _d('Recursing to slaves');
|
|
my $vp = new VersionParser();
|
|
my $ms = new MasterSlave(VersionParser => $vp);
|
|
$ms->recurse_to_slaves(
|
|
{ dbh => $dbh,
|
|
dsn => $dsn,
|
|
dsn_parser => $dp,
|
|
recurse => $o->get('recurse'),
|
|
callback => sub {
|
|
my ( $dsn, $dbh, $level ) = @_;
|
|
push @dbhs, $dbh;
|
|
MKDEBUG && _d("Found slave", $dp->as_string($dsn));
|
|
push @sths, [ $dsn, $dbh->prepare($sql) ];
|
|
},
|
|
method => $o->get('recursion-method'),
|
|
},
|
|
);
|
|
}
|
|
else {
|
|
push @sths, [ $dsn, $sth ];
|
|
}
|
|
|
|
my $format_delay = ($args{hires_ts} ? '%.2f' : '%d')
|
|
. ($o->get('print-master-server-id') ? " %d" : "")
|
|
. "\n";
|
|
my $format_host = "%-20s $format_delay";
|
|
|
|
# Before hi-res ts, we could check all slaves at one interval, assuming
|
|
# the checks were fast, i.e. able to be done within one interval. But
|
|
# now we have intervals up to 0.01 fast and that's too short to check all
|
|
# slaves. So for each slave we sleep until the next interval.
|
|
my $get_next_interval = make_interval_iter($interval, $skew);
|
|
|
|
SLAVE:
|
|
foreach my $thing ( @sths ) {
|
|
my ( $dsn, $sth ) = @$thing;
|
|
MKDEBUG && _d('Checking slave', $dp->as_string($dsn));
|
|
|
|
my $next_interval = $get_next_interval->();
|
|
if ( time >= $next_interval ) {
|
|
do { $next_interval = $get_next_interval->() }
|
|
until $next_interval > time;
|
|
MKDEBUG && _d("Missed last interval; next interval:",
|
|
ts($next_interval));
|
|
}
|
|
sleep $next_interval - time;
|
|
MKDEBUG && _d('Woke up at', ts(time));
|
|
my ($delay, $hostname, $master_server_id) = $get_delay->($sth);
|
|
|
|
if ( $o->get('recurse') ) {
|
|
# Must print not only the delay, but the server's hostname if
|
|
# available. Prefer the hostname from the DSN, then the hostname
|
|
# from @@hostname, then fall back to Socket or default File.
|
|
my $host = $dsn->{h} || $hostname || $dsn->{S} || $dsn->{F} || '';
|
|
if ( $dsn->{P} && $dsn->{P} ne '3306' ) {
|
|
$host .= ":$dsn->{P}";
|
|
}
|
|
printf($format_host, $host, $delay, $master_server_id);
|
|
}
|
|
else {
|
|
# Just print the delay.
|
|
printf($format_delay, $delay, $master_server_id);
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
# The interval iterator works by first returning the next whole second.
|
|
# So if the current time (since epoch) is 5.123, then the next whole second
|
|
# is 6.0, plus an optional skew. The next interval is 6.0 * the interval.
|
|
# If the interval is 0.5s, then the next interval is 6.5, plus an optional
|
|
# skew. Therefore, we always start on a whole second and return when the
|
|
# next interval is or should be. The caller can then sleep(time-next_interval)
|
|
# to wake up at that interval. If the caller misses the next interval,
|
|
# they just call the iterator until the next interval is later then the
|
|
# current time.
|
|
sub make_interval_iter {
|
|
my ( $interval, $skew ) = @_;
|
|
die "I need an interval argument" unless defined $interval;
|
|
my ($s) = gettimeofday();
|
|
my $start_s = $s + 1;
|
|
my $i = 0;
|
|
my $get_next_interval = sub {
|
|
return $start_s + ($interval * $i++) + $skew;
|
|
};
|
|
return $get_next_interval;
|
|
}
|
|
|
|
sub disconnect {
|
|
my ( $dbh, $sth ) = @_;
|
|
MKDEBUG && _d('Disconnecting');
|
|
$sth->finish() if $sth;
|
|
foreach my $handle ( @sths ) {
|
|
my $sth = $handle->[1];
|
|
$sth->finish() if $sth;
|
|
}
|
|
foreach my $handle ( $dbh, @dbhs ) {
|
|
$handle->disconnect() if $handle;
|
|
}
|
|
return;
|
|
}
|
|
|
|
sub _d {
|
|
my ($package, undef, $line) = caller 0;
|
|
@_ = map { (my $temp = $_) =~ s/\n/\n# /g; $temp; }
|
|
map { defined $_ ? $_ : 'undef' }
|
|
@_;
|
|
print STDERR "# $package:$line $PID ", join(' ', @_), "\n";
|
|
}
|
|
|
|
# ############################################################################
|
|
# Run the program.
|
|
# ############################################################################
|
|
if ( !caller ) { exit main(@ARGV); }
|
|
|
|
1; # Because this is a module as well as a script.
|
|
|
|
# ############################################################################
|
|
# Documentation.
|
|
# ############################################################################
|
|
|
|
=pod
|
|
|
|
=head1 NAME
|
|
|
|
pt-heartbeat - Monitor MySQL replication delay.
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
Usage: pt-heartbeat [OPTION...] [DSN] --update|--monitor|--check|--stop
|
|
|
|
pt-heartbeat measures replication lag on a MySQL or PostgreSQL server. You can
|
|
use it to update a master or monitor a replica. If possible, MySQL connection
|
|
options are read from your .my.cnf file.
|
|
|
|
Start daemonized process to update test.heartbeat table on master:
|
|
|
|
pt-heartbeat -D test --update -h master-server --daemonize
|
|
|
|
Monitor replication lag on slave:
|
|
|
|
pt-heartbeat -D test --monitor -h slave-server
|
|
|
|
pt-heartbeat -D test --monitor -h slave-server --dbi-driver Pg
|
|
|
|
Check slave lag once and exit (using optional DSN to specify slave host):
|
|
|
|
pt-heartbeat -D test --check h=slave-server
|
|
|
|
=head1 RISKS
|
|
|
|
The following section is included to inform users about the potential risks,
|
|
whether known or unknown, of using this tool. The two main categories of risks
|
|
are those created by the nature of the tool (e.g. read-only tools vs. read-write
|
|
tools) and those created by bugs.
|
|
|
|
pt-heartbeat merely reads and writes a single record in a table. It should be
|
|
very low-risk.
|
|
|
|
At the time of this release, we know of no bugs that could cause serious harm to
|
|
users.
|
|
|
|
The authoritative source for updated information is always the online issue
|
|
tracking system. Issues that affect this tool will be marked as such. You can
|
|
see a list of such issues at the following URL:
|
|
L<http://www.percona.com/bugs/pt-heartbeat>.
|
|
|
|
See also L<"BUGS"> for more information on filing bugs and getting help.
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
pt-heartbeat is a two-part MySQL and PostgreSQL replication delay monitoring
|
|
system that measures delay by looking at actual replicated data. This
|
|
avoids reliance on the replication mechanism itself, which is unreliable. (For
|
|
example, C<SHOW SLAVE STATUS> on MySQL).
|
|
|
|
The first part is an L<"--update"> instance of pt-heartbeat that connects to
|
|
a master and updates a timestamp ("heartbeat record") every L<"--interval">
|
|
seconds. Since the heartbeat table may contain records from multiple
|
|
masters (see L<"MULTI-SLAVE HIERARCHY">), the server's ID (@@server_id) is
|
|
used to identify records.
|
|
|
|
The second part is a L<"--monitor"> or L<"--check"> instance of pt-heartbeat
|
|
that connects to a slave, examines the replicated heartbeat record from its
|
|
immediate master or the specified L<"--master-server-id">, and computes the
|
|
difference from the current system time. If replication between the slave and
|
|
the master is delayed or broken, the computed difference will be greater than
|
|
zero and potentially increase if L<"--monitor"> is specified.
|
|
|
|
You must either manually create the heartbeat table on the master or use
|
|
L<"--create-table">. See L<"--create-table"> for the proper heartbeat
|
|
table structure. The C<MEMORY> storage engine is suggested, but not
|
|
required of course, for MySQL.
|
|
|
|
The heartbeat table must contain a heartbeat row. By default, a heartbeat
|
|
row is inserted if it doesn't exist. This feature can be disabled with the
|
|
L<"--[no]insert-heartbeat-row"> option in case the database user does not
|
|
have INSERT privileges.
|
|
|
|
pt-heartbeat depends only on the heartbeat record being replicated to the slave,
|
|
so it works regardless of the replication mechanism (built-in replication, a
|
|
system such as Continuent Tungsten, etc). It works at any depth in the
|
|
replication hierarchy; for example, it will reliably report how far a slave lags
|
|
its master's master's master. And if replication is stopped, it will continue
|
|
to work and report (accurately!) that the slave is falling further and further
|
|
behind the master.
|
|
|
|
pt-heartbeat has a maximum resolution of 0.01 second. The clocks on the
|
|
master and slave servers must be closely synchronized via NTP. By default,
|
|
L<"--update"> checks happen on the edge of the second (e.g. 00:01) and
|
|
L<"--monitor"> checks happen halfway between seconds (e.g. 00:01.5).
|
|
As long as the servers' clocks are closely synchronized and replication
|
|
events are propagating in less than half a second, pt-heartbeat will report
|
|
zero seconds of delay.
|
|
|
|
pt-heartbeat will try to reconnect if the connection has an error, but will
|
|
not retry if it can't get a connection when it first starts.
|
|
|
|
The L<"--dbi-driver"> option lets you use pt-heartbeat to monitor PostgreSQL
|
|
as well. It is reported to work well with Slony-1 replication.
|
|
|
|
=head1 MULTI-SLAVE HIERARCHY
|
|
|
|
If the replication hierarchy has multiple slaves which are masters of
|
|
other slaves, like "master -> slave1 -> slave2", L<"--update"> instances
|
|
can be ran on the slaves as well as the master. The default heartbeat
|
|
table (see L<"--create-table">) is keyed on the C<server_id> column, so
|
|
each server will update the row where C<server_id=@@server_id>.
|
|
|
|
For L<"--monitor"> and L<"--check">, if L<"--master-server-id"> is not
|
|
specified, the tool tries to discover and use the slave's immediate master.
|
|
If this fails, or if you want monitor lag from another master, then you can
|
|
specify the L<"--master-server-id"> to use.
|
|
|
|
For example, if the replication hierarchy is "master -> slave1 -> slave2"
|
|
with corresponding server IDs 1, 2 and 3, you can:
|
|
|
|
pt-heartbeat --daemonize -D test --update -h master
|
|
pt-heartbeat --daemonize -D test --update -h slave1
|
|
|
|
Then check (or monitor) the replication delay from master to slave2:
|
|
|
|
pt-heartbeat -D test --master-server-id 1 --check slave2
|
|
|
|
Or check the replication delay from slave1 to slave2:
|
|
|
|
pt-heartbeat -D test --master-server-id 2 --check slave2
|
|
|
|
Stopping the L<"--update"> instance one slave1 will not affect the instance
|
|
on master.
|
|
|
|
=head1 MASTER AND SLAVE STATUS
|
|
|
|
The default heartbeat table (see L<"--create-table">) has columns for saving
|
|
information from C<SHOW MASTER STATUS> and C<SHOW SLAVE STATUS>. These
|
|
columns are optional. If any are present, their corresponding information
|
|
will be saved.
|
|
|
|
=head1 OPTIONS
|
|
|
|
Specify at least one of L<"--stop">, L<"--update">, L<"--monitor">, or L<"--check">.
|
|
|
|
L<"--update">, L<"--monitor">, and L<"--check"> are mutually exclusive.
|
|
|
|
L<"--daemonize"> and L<"--check"> are mutually exclusive.
|
|
|
|
This tool accepts additional command-line arguments. Refer to the
|
|
L<"SYNOPSIS"> and usage information for details.
|
|
|
|
=over
|
|
|
|
=item --ask-pass
|
|
|
|
Prompt for a password when connecting to MySQL.
|
|
|
|
=item --charset
|
|
|
|
short form: -A; type: string
|
|
|
|
Default character set. If the value is utf8, sets Perl's binmode on STDOUT to
|
|
utf8, passes the mysql_enable_utf8 option to DBD::mysql, and runs SET NAMES UTF8
|
|
after connecting to MySQL. Any other value sets binmode on STDOUT without the
|
|
utf8 layer, and runs SET NAMES after connecting to MySQL.
|
|
|
|
=item --check
|
|
|
|
Check slave delay once and exit. If you also specify L<"--recurse">, the
|
|
tool will try to discover slave's of the given slave and check and print
|
|
their lag, too. The hostname or IP and port for each slave is printed
|
|
before its delay. L<"--recurse"> only works with MySQL.
|
|
|
|
=item --config
|
|
|
|
type: Array
|
|
|
|
Read this comma-separated list of config files; if specified, this must be the
|
|
first option on the command line.
|
|
|
|
=item --create-table
|
|
|
|
Create the heartbeat L<"--table"> if it does not exist.
|
|
|
|
This option causes the table specified by L<"--database"> and L<"--table"> to
|
|
be created with the following MAGIC_create_heartbeat table definition:
|
|
|
|
CREATE TABLE heartbeat (
|
|
ts varchar(26) NOT NULL,
|
|
server_id int unsigned NOT NULL PRIMARY KEY,
|
|
file varchar(255) DEFAULT NULL, -- SHOW MASTER STATUS
|
|
position bigint unsigned DEFAULT NULL, -- SHOW MASTER STATUS
|
|
relay_master_log_file varchar(255) DEFAULT NULL, -- SHOW SLAVE STATUS
|
|
exec_master_log_pos bigint unsigned DEFAULT NULL -- SHOW SLAVE STATUS
|
|
);
|
|
|
|
The heartbeat table requires at least one row. If you manually create the
|
|
heartbeat table, then you must insert a row by doing:
|
|
|
|
INSERT INTO heartbeat (ts, server_id) VALUES (NOW(), N);
|
|
|
|
where C<N> is the server's ID; do not use @@server_id because it will replicate
|
|
and slaves will insert their own server ID instead of the master's server ID.
|
|
|
|
This is done automatically by L<"--create-table">.
|
|
|
|
A legacy version of the heartbeat table is still supported:
|
|
|
|
CREATE TABLE heartbeat (
|
|
id int NOT NULL PRIMARY KEY,
|
|
ts datetime NOT NULL
|
|
);
|
|
|
|
Legacy tables do not support L<"--update"> instances on each slave
|
|
of a multi-slave hierarchy like "master -> slave1 -> slave2".
|
|
To manually insert the one required row into a legacy table:
|
|
|
|
INSERT INTO heartbeat (id, ts) VALUES (1, NOW());
|
|
|
|
The tool automatically detects if the heartbeat table is legacy.
|
|
|
|
See also L<"MULTI-SLAVE HIERARCHY">.
|
|
|
|
=item --daemonize
|
|
|
|
Fork to the background and detach from the shell. POSIX operating systems only.
|
|
|
|
=item --database
|
|
|
|
short form: -D; type: string
|
|
|
|
The database to use for the connection.
|
|
|
|
=item --dbi-driver
|
|
|
|
default: mysql; type: string
|
|
|
|
Specify a driver for the connection; C<mysql> and C<Pg> are supported.
|
|
|
|
=item --defaults-file
|
|
|
|
short form: -F; type: string
|
|
|
|
Only read mysql options from the given file. You must give an absolute
|
|
pathname.
|
|
|
|
=item --file
|
|
|
|
type: string
|
|
|
|
Print latest L<"--monitor"> output to this file.
|
|
|
|
When L<"--monitor"> is given, prints output to the specified file instead of to
|
|
STDOUT. The file is opened, truncated, and closed every interval, so it will
|
|
only contain the most recent statistics. Useful when L<"--daemonize"> is given.
|
|
|
|
=item --frames
|
|
|
|
type: string; default: 1m,5m,15m
|
|
|
|
Timeframes for averages.
|
|
|
|
Specifies the timeframes over which to calculate moving averages when
|
|
L<"--monitor"> is given. Specify as a comma-separated list of numbers with
|
|
suffixes. The suffix can be s for seconds, m for minutes, h for hours, or d for
|
|
days. The size of the largest frame determines the maximum memory usage, as up
|
|
to the specified number of per-second samples are kept in memory to calculate
|
|
the averages. You can specify as many timeframes as you like.
|
|
|
|
=item --help
|
|
|
|
Show help and exit.
|
|
|
|
=item --host
|
|
|
|
short form: -h; type: string
|
|
|
|
Connect to host.
|
|
|
|
=item --[no]insert-heartbeat-row
|
|
|
|
default: yes
|
|
|
|
Insert a heartbeat row in the L<"--table"> if one doesn't exist.
|
|
|
|
The heartbeat L<"--table"> requires a heartbeat row, else there's nothing
|
|
to L<"--update">, L<"--monitor">, or L<"--check">! By default, the tool will
|
|
insert a heartbeat row if one is not already present. You can disable this
|
|
feature by specifying C<--no-insert-heartbeat-row> in case the database user
|
|
does not have INSERT privileges.
|
|
|
|
=item --interval
|
|
|
|
type: float; default: 1.0
|
|
|
|
How often to update or check the heartbeat L<"--table">. Updates and checks
|
|
begin on the first whole second then repeat every L<"--interval"> seconds
|
|
for L<"--update"> and every L<"--interval"> plus L<"--skew"> seconds for
|
|
L<"--monitor">.
|
|
|
|
For example, if at 00:00.4 an L<"--update"> instance is started at 0.5 second
|
|
intervals, the first update happens at 00:01.0, the next at 00:01.5, etc.
|
|
If at 00:10.7 a L<"--monitor"> instance is started at 0.05 second intervals
|
|
with the default 0.5 second L<"--skew">, then the first check happens at
|
|
00:11.5 (00:11.0 + 0.5) which will be L<"--skew"> seconds after the last update
|
|
which, because the instances are checking at synchronized intervals, happened
|
|
at 00:11.0.
|
|
|
|
The tool waits for and begins on the first whole second just to make the
|
|
interval calculations simpler. Therefore, the tool could wait up to 1 second
|
|
before updating or checking.
|
|
|
|
The minimum (fastest) interval is 0.01, and the maximum precision is two
|
|
decimal places, so 0.015 will be rounded to 0.02.
|
|
|
|
If a legacy heartbeat table (see L<"--create-table">) is used, then the
|
|
maximum precision is 1s because the C<ts> column is type C<datetime>.
|
|
|
|
=item --log
|
|
|
|
type: string
|
|
|
|
Print all output to this file when daemonized.
|
|
|
|
=item --master-server-id
|
|
|
|
type: string
|
|
|
|
Calculate delay from this master server ID for L<"--monitor"> or L<"--check">.
|
|
If not given, pt-heartbeat attempts to connect to the server's master and
|
|
determine its server id.
|
|
|
|
=item --monitor
|
|
|
|
Monitor slave delay continuously.
|
|
|
|
Specifies that pt-heartbeat should check the slave's delay every second and
|
|
report to STDOUT (or if L<"--file"> is given, to the file instead). The output
|
|
is the current delay followed by moving averages over the timeframe given in
|
|
L<"--frames">. For example,
|
|
|
|
5s [ 0.25s, 0.05s, 0.02s ]
|
|
|
|
=item --password
|
|
|
|
short form: -p; type: string
|
|
|
|
Password to use when connecting.
|
|
|
|
=item --pid
|
|
|
|
type: string
|
|
|
|
Create the given PID file when daemonized. The file contains the process ID of
|
|
the daemonized instance. The PID file is removed when the daemonized instance
|
|
exits. The program checks for the existence of the PID file when starting; if
|
|
it exists and the process with the matching PID exists, the program exits.
|
|
|
|
=item --port
|
|
|
|
short form: -P; type: int
|
|
|
|
Port number to use for connection.
|
|
|
|
=item --print-master-server-id
|
|
|
|
Print the auto-detected or given L<"--master-server-id">. If L<"--check">
|
|
or L<"--monitor"> is specified, specifying this option will print the
|
|
auto-detected or given L<"--master-server-id"> at the end of each line.
|
|
|
|
=item --recurse
|
|
|
|
type: int
|
|
|
|
Check slaves recursively to this depth in L<"--check"> mode.
|
|
|
|
Try to discover slave servers recursively, to the specified depth. After
|
|
discovering servers, run the check on each one of them and print the hostname
|
|
(if possible), followed by the slave delay.
|
|
|
|
This currently works only with MySQL. See L<"--recursion-method">.
|
|
|
|
=item --recursion-method
|
|
|
|
type: string
|
|
|
|
Preferred recursion method used to find slaves.
|
|
|
|
Possible methods are:
|
|
|
|
METHOD USES
|
|
=========== ================
|
|
processlist SHOW PROCESSLIST
|
|
hosts SHOW SLAVE HOSTS
|
|
|
|
The processlist method is preferred because SHOW SLAVE HOSTS is not reliable.
|
|
However, the hosts method is required if the server uses a non-standard
|
|
port (not 3306). Usually pt-heartbeat does the right thing and finds
|
|
the slaves, but you may give a preferred method and it will be used first.
|
|
If it doesn't find any slaves, the other methods will be tried.
|
|
|
|
=item --replace
|
|
|
|
Use C<REPLACE> instead of C<UPDATE> for --update.
|
|
|
|
When running in L<"--update"> mode, use C<REPLACE> instead of C<UPDATE> to set
|
|
the heartbeat table's timestamp. The C<REPLACE> statement is a MySQL extension
|
|
to SQL. This option is useful when you don't know whether the table contains
|
|
any rows or not. It must be used in conjunction with --update.
|
|
|
|
=item --run-time
|
|
|
|
type: time
|
|
|
|
Time to run before exiting.
|
|
|
|
=item --sentinel
|
|
|
|
type: string; default: /tmp/pt-heartbeat-sentinel
|
|
|
|
Exit if this file exists.
|
|
|
|
=item --set-vars
|
|
|
|
type: string; default: wait_timeout=10000
|
|
|
|
Set these MySQL variables. Immediately after connecting to MySQL, this string
|
|
will be appended to SET and executed.
|
|
|
|
=item --skew
|
|
|
|
type: float; default: 0.5
|
|
|
|
How long to delay checks.
|
|
|
|
The default is to delay checks one half second. Since the update happens as
|
|
soon as possible after the beginning of the second on the master, this allows
|
|
one half second of replication delay before reporting that the slave lags the
|
|
master by one second. If your clocks are not completely accurate or there is
|
|
some other reason you'd like to delay the slave more or less, you can tweak this
|
|
value. Try setting the C<MKDEBUG> environment variable to see the effect this
|
|
has.
|
|
|
|
=item --socket
|
|
|
|
short form: -S; type: string
|
|
|
|
Socket file to use for connection.
|
|
|
|
=item --stop
|
|
|
|
Stop running instances by creating the sentinel file.
|
|
|
|
This should have the effect of stopping all running
|
|
instances which are watching the same sentinel file. If none of
|
|
L<"--update">, L<"--monitor"> or L<"--check"> is specified, C<pt-heartbeat>
|
|
will exit after creating the file. If one of these is specified,
|
|
C<pt-heartbeat> will wait the interval given by L<"--interval">, then remove
|
|
the file and continue working.
|
|
|
|
You might find this handy to stop cron jobs gracefully if necessary, or to
|
|
replace one running instance with another. For example, if you want to stop
|
|
and restart C<pt-heartbeat> every hour (just to make sure that it is restarted
|
|
every hour, in case of a server crash or some other problem), you could use a
|
|
C<crontab> line like this:
|
|
|
|
0 * * * * pt-heartbeat --update -D test --stop \
|
|
--sentinel /tmp/pt-heartbeat-hourly
|
|
|
|
The non-default L<"--sentinel"> will make sure the hourly C<cron> job stops
|
|
only instances previously started with the same options (that is, from the
|
|
same C<cron> job).
|
|
|
|
See also L<"--sentinel">.
|
|
|
|
=item --table
|
|
|
|
type: string; default: heartbeat
|
|
|
|
The table to use for the heartbeat.
|
|
|
|
Don't specify database.table; use L<"--database"> to specify the database.
|
|
|
|
See L<"--create-table">.
|
|
|
|
=item --update
|
|
|
|
Update a master's heartbeat.
|
|
|
|
=item --user
|
|
|
|
short form: -u; type: string
|
|
|
|
User for login if not current user.
|
|
|
|
=item --version
|
|
|
|
Show version and exit.
|
|
|
|
=back
|
|
|
|
=head1 DSN OPTIONS
|
|
|
|
These DSN options are used to create a DSN. Each option is given like
|
|
C<option=value>. The options are case-sensitive, so P and p are not the
|
|
same option. There cannot be whitespace before or after the C<=> and
|
|
if the value contains whitespace it must be quoted. DSN options are
|
|
comma-separated. See the L<percona-toolkit> manpage for full details.
|
|
|
|
=over
|
|
|
|
=item * A
|
|
|
|
dsn: charset; copy: yes
|
|
|
|
Default character set.
|
|
|
|
=item * D
|
|
|
|
dsn: database; copy: yes
|
|
|
|
Default database.
|
|
|
|
=item * F
|
|
|
|
dsn: mysql_read_default_file; copy: yes
|
|
|
|
Only read default options from the given file
|
|
|
|
=item * h
|
|
|
|
dsn: host; copy: yes
|
|
|
|
Connect to host.
|
|
|
|
=item * p
|
|
|
|
dsn: password; copy: yes
|
|
|
|
Password to use when connecting.
|
|
|
|
=item * P
|
|
|
|
dsn: port; copy: yes
|
|
|
|
Port number to use for connection.
|
|
|
|
=item * S
|
|
|
|
dsn: mysql_socket; copy: yes
|
|
|
|
Socket file to use for connection.
|
|
|
|
=item * u
|
|
|
|
dsn: user; copy: yes
|
|
|
|
User for login if not current user.
|
|
|
|
=back
|
|
|
|
=head1 DOWNLOADING
|
|
|
|
Visit L<http://www.percona.com/software/> to download the latest release of
|
|
Percona Toolkit. Or, to get the latest release from the command line:
|
|
|
|
wget percona.com/latest/percona-toolkit/PKG
|
|
|
|
Replace C<PKG> with C<tar>, C<rpm>, or C<deb> to download the package in that
|
|
format. You can also get individual tools from the latest release:
|
|
|
|
wget percona.com/latest/percona-toolkit/TOOL
|
|
|
|
Replace C<TOOL> with the name of any tool.
|
|
|
|
=head1 ENVIRONMENT
|
|
|
|
The environment variable C<PTDEBUG> enables verbose debugging output to STDERR.
|
|
To enable debugging and capture all output to a file, run the tool like:
|
|
|
|
PTDEBUG=1 pt-heartbeat ... > FILE 2>&1
|
|
|
|
Be careful: debugging output is voluminous and can generate several megabytes
|
|
of output.
|
|
|
|
=head1 SYSTEM REQUIREMENTS
|
|
|
|
You need Perl, DBI, DBD::mysql, and some core packages that ought to be
|
|
installed in any reasonably new version of Perl.
|
|
|
|
=head1 BUGS
|
|
|
|
For a list of known bugs, see L<http://www.percona.com/bugs/pt-heartbeat>.
|
|
|
|
Please report bugs at L<https://bugs.launchpad.net/percona-toolkit>.
|
|
Include the following information in your bug report:
|
|
|
|
=over
|
|
|
|
=item * Complete command-line used to run the tool
|
|
|
|
=item * Tool L<"--version">
|
|
|
|
=item * MySQL version of all servers involved
|
|
|
|
=item * Output from the tool including STDERR
|
|
|
|
=item * Input files (log/dump/config files, etc.)
|
|
|
|
=back
|
|
|
|
If possible, include debugging output by running the tool with C<PTDEBUG>;
|
|
see L<"ENVIRONMENT">.
|
|
|
|
=head1 AUTHORS
|
|
|
|
Proven Scaling LLC, SixApart Ltd, Baron Schwartz, and Daniel Nichter
|
|
|
|
=head1 ABOUT PERCONA TOOLKIT
|
|
|
|
This tool is part of Percona Toolkit, a collection of advanced command-line
|
|
tools developed by Percona for MySQL support and consulting. Percona Toolkit
|
|
was forked from two projects in June, 2011: Maatkit and Aspersa. Those
|
|
projects were created by Baron Schwartz and developed primarily by him and
|
|
Daniel Nichter, both of whom are employed by Percona. Visit
|
|
L<http://www.percona.com/software/> for more software developed by Percona.
|
|
|
|
=head1 COPYRIGHT, LICENSE, AND WARRANTY
|
|
|
|
This program is copyright 2006 Proven Scaling LLC and Six Apart Ltd,
|
|
2007-2011 Percona Inc.
|
|
Feedback and improvements are welcome.
|
|
|
|
Feedback and improvements are welcome.
|
|
|
|
THIS PROGRAM IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
|
|
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
This program is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free Software
|
|
Foundation, version 2; OR the Perl Artistic License. On UNIX and similar
|
|
systems, you can issue `man perlgpl' or `man perlartistic' to read these
|
|
licenses.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
|
Place, Suite 330, Boston, MA 02111-1307 USA.
|
|
|
|
=head1 VERSION
|
|
|
|
Percona Toolkit v1.0.0 released 2011-08-01
|
|
|
|
=cut
|